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Finding the Fourth Proportional to 15,797.92, 21,803.57 and 9,751.69

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Solution

The fourth proportional to 15,797.92, 21,803.57 and 9,751.69 is: 13,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.92 : 21,803.57 = 9,751.69 : x
  2. Step 2: Convert to fraction form
    15,797.92/21,803.57 = 9,751.69/x
  3. Step 3: Cross multiply
    15,797.92x = 21,803.57 × 9,751.69
  4. Step 4: Simplify right side
    15,797.92x = 212,621,655.53
  5. Step 5: Solve for x
    x = 212,621,655.53/15,797.92
  6. Step 6: Final answer
    x = 13,458.84

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Half scale
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Double scale
Find fourth proportional to 15,798.92, 21,804.95 and 9,752.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.