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Finding the Fourth Proportional to 60,691.84, 83,707.26 and 39,477.88

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Solution

The fourth proportional to 60,691.84, 83,707.26 and 39,477.88 is: 54,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,691.84 : 83,707.26 = 39,477.88 : x
  2. Step 2: Convert to fraction form
    60,691.84/83,707.26 = 39,477.88/x
  3. Step 3: Cross multiply
    60,691.84x = 83,707.26 × 39,477.88
  4. Step 4: Simplify right side
    60,691.84x = 3,304,585,165.41
  5. Step 5: Solve for x
    x = 3,304,585,165.41/60,691.84
  6. Step 6: Final answer
    x = 54,448.59

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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.