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Finding the Fourth Proportional to 69,150, 95,421.33 and 38,925.66

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Solution

The fourth proportional to 69,150, 95,421.33 and 38,925.66 is: 53,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,150 : 95,421.33 = 38,925.66 : x
  2. Step 2: Convert to fraction form
    69,150/95,421.33 = 38,925.66/x
  3. Step 3: Cross multiply
    69,150x = 95,421.33 × 38,925.66
  4. Step 4: Simplify right side
    69,150x = 3,714,338,248.33
  5. Step 5: Solve for x
    x = 3,714,338,248.33/69,150
  6. Step 6: Final answer
    x = 53,714.22

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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.