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Finding the Fourth Proportional to 44,099.92, 66,136.92 and 12,931.12

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Solution

The fourth proportional to 44,099.92, 66,136.92 and 12,931.12 is: 19,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,099.92 : 66,136.92 = 12,931.12 : x
  2. Step 2: Convert to fraction form
    44,099.92/66,136.92 = 12,931.12/x
  3. Step 3: Cross multiply
    44,099.92x = 66,136.92 × 12,931.12
  4. Step 4: Simplify right side
    44,099.92x = 855,224,448.95
  5. Step 5: Solve for x
    x = 855,224,448.95/44,099.92
  6. Step 6: Final answer
    x = 19,392.88

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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.