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Finding the Fourth Proportional to 15,913.84, 23,871 and 5,525.92

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Solution

The fourth proportional to 15,913.84, 23,871 and 5,525.92 is: 8,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.84 : 23,871 = 5,525.92 : x
  2. Step 2: Convert to fraction form
    15,913.84/23,871 = 5,525.92/x
  3. Step 3: Cross multiply
    15,913.84x = 23,871 × 5,525.92
  4. Step 4: Simplify right side
    15,913.84x = 131,909,236.32
  5. Step 5: Solve for x
    x = 131,909,236.32/15,913.84
  6. Step 6: Final answer
    x = 8,288.96

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.