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Finding the Fourth Proportional to 63,505.75, 87,617.93 and 39,646.24

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Solution

The fourth proportional to 63,505.75, 87,617.93 and 39,646.24 is: 54,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,505.75 : 87,617.93 = 39,646.24 : x
  2. Step 2: Convert to fraction form
    63,505.75/87,617.93 = 39,646.24/x
  3. Step 3: Cross multiply
    63,505.75x = 87,617.93 × 39,646.24
  4. Step 4: Simplify right side
    63,505.75x = 3,473,721,481.08
  5. Step 5: Solve for x
    x = 3,473,721,481.08/63,505.75
  6. Step 6: Final answer
    x = 54,699.32

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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.