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Finding the Fourth Proportional to 48,448.60, 72,672.90 and 42,304.60

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Solution

The fourth proportional to 48,448.60, 72,672.90 and 42,304.60 is: 63,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,448.60 : 72,672.90 = 42,304.60 : x
  2. Step 2: Convert to fraction form
    48,448.60/72,672.90 = 42,304.60/x
  3. Step 3: Cross multiply
    48,448.60x = 72,672.90 × 42,304.60
  4. Step 4: Simplify right side
    48,448.60x = 3,074,397,965.34
  5. Step 5: Solve for x
    x = 3,074,397,965.34/48,448.60
  6. Step 6: Final answer
    x = 63,456.90

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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.