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Finding the Fourth Proportional to 61,155.59, 84,358.87 and 38,458.58

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Solution

The fourth proportional to 61,155.59, 84,358.87 and 38,458.58 is: 53,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,155.59 : 84,358.87 = 38,458.58 : x
  2. Step 2: Convert to fraction form
    61,155.59/84,358.87 = 38,458.58/x
  3. Step 3: Cross multiply
    61,155.59x = 84,358.87 × 38,458.58
  4. Step 4: Simplify right side
    61,155.59x = 3,244,321,832.66
  5. Step 5: Solve for x
    x = 3,244,321,832.66/61,155.59
  6. Step 6: Final answer
    x = 53,050.30

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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.