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Finding the Fourth Proportional to 60,438.92, 83,417.64 and 38,621.24

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Solution

The fourth proportional to 60,438.92, 83,417.64 and 38,621.24 is: 53,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,438.92 : 83,417.64 = 38,621.24 : x
  2. Step 2: Convert to fraction form
    60,438.92/83,417.64 = 38,621.24/x
  3. Step 3: Cross multiply
    60,438.92x = 83,417.64 × 38,621.24
  4. Step 4: Simplify right side
    60,438.92x = 3,221,692,694.67
  5. Step 5: Solve for x
    x = 3,221,692,694.67/60,438.92
  6. Step 6: Final answer
    x = 53,304.93

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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.