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Finding the Fourth Proportional to 15,798.49, 21,803.07 and 9,086.23

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Solution

The fourth proportional to 15,798.49, 21,803.07 and 9,086.23 is: 12,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.49 : 21,803.07 = 9,086.23 : x
  2. Step 2: Convert to fraction form
    15,798.49/21,803.07 = 9,086.23/x
  3. Step 3: Cross multiply
    15,798.49x = 21,803.07 × 9,086.23
  4. Step 4: Simplify right side
    15,798.49x = 198,107,708.73
  5. Step 5: Solve for x
    x = 198,107,708.73/15,798.49
  6. Step 6: Final answer
    x = 12,539.66

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Half scale
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Double scale
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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.