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Finding the Fourth Proportional to 60,425.90, 83,399.61 and 38,608.16

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Solution

The fourth proportional to 60,425.90, 83,399.61 and 38,608.16 is: 53,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,425.90 : 83,399.61 = 38,608.16 : x
  2. Step 2: Convert to fraction form
    60,425.90/83,399.61 = 38,608.16/x
  3. Step 3: Cross multiply
    60,425.90x = 83,399.61 × 38,608.16
  4. Step 4: Simplify right side
    60,425.90x = 3,219,905,486.82
  5. Step 5: Solve for x
    x = 3,219,905,486.82/60,425.90
  6. Step 6: Final answer
    x = 53,286.84

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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.