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Finding the Fourth Proportional to 60,712.74, 91,013.98 and 21,248.32

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Solution

The fourth proportional to 60,712.74, 91,013.98 and 21,248.32 is: 31,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,712.74 : 91,013.98 = 21,248.32 : x
  2. Step 2: Convert to fraction form
    60,712.74/91,013.98 = 21,248.32/x
  3. Step 3: Cross multiply
    60,712.74x = 91,013.98 × 21,248.32
  4. Step 4: Simplify right side
    60,712.74x = 1,933,894,267.69
  5. Step 5: Solve for x
    x = 1,933,894,267.69/60,712.74
  6. Step 6: Final answer
    x = 31,853.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.