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Finding the Fourth Proportional to 60,486.38, 83,481.54 and 38,970.08

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Solution

The fourth proportional to 60,486.38, 83,481.54 and 38,970.08 is: 53,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.38 : 83,481.54 = 38,970.08 : x
  2. Step 2: Convert to fraction form
    60,486.38/83,481.54 = 38,970.08/x
  3. Step 3: Cross multiply
    60,486.38x = 83,481.54 × 38,970.08
  4. Step 4: Simplify right side
    60,486.38x = 3,253,282,292.32
  5. Step 5: Solve for x
    x = 3,253,282,292.32/60,486.38
  6. Step 6: Final answer
    x = 53,785.37

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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.