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Finding the Fourth Proportional to 10,045.92, 15,069.12 and 5,914.92

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Solution

The fourth proportional to 10,045.92, 15,069.12 and 5,914.92 is: 8,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,045.92 : 15,069.12 = 5,914.92 : x
  2. Step 2: Convert to fraction form
    10,045.92/15,069.12 = 5,914.92/x
  3. Step 3: Cross multiply
    10,045.92x = 15,069.12 × 5,914.92
  4. Step 4: Simplify right side
    10,045.92x = 89,132,639.27
  5. Step 5: Solve for x
    x = 89,132,639.27/10,045.92
  6. Step 6: Final answer
    x = 8,872.52

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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.