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Finding the Fourth Proportional to 63,153.28, 87,149.28 and 34,858.90

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Solution

The fourth proportional to 63,153.28, 87,149.28 and 34,858.90 is: 48,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,153.28 : 87,149.28 = 34,858.90 : x
  2. Step 2: Convert to fraction form
    63,153.28/87,149.28 = 34,858.90/x
  3. Step 3: Cross multiply
    63,153.28x = 87,149.28 × 34,858.90
  4. Step 4: Simplify right side
    63,153.28x = 3,037,928,036.59
  5. Step 5: Solve for x
    x = 3,037,928,036.59/63,153.28
  6. Step 6: Final answer
    x = 48,104.04

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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.