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Finding the Fourth Proportional to 48,818.60, 73,227.90 and 28,860.20

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Solution

The fourth proportional to 48,818.60, 73,227.90 and 28,860.20 is: 43,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,818.60 : 73,227.90 = 28,860.20 : x
  2. Step 2: Convert to fraction form
    48,818.60/73,227.90 = 28,860.20/x
  3. Step 3: Cross multiply
    48,818.60x = 73,227.90 × 28,860.20
  4. Step 4: Simplify right side
    48,818.60x = 2,113,371,839.58
  5. Step 5: Solve for x
    x = 2,113,371,839.58/48,818.60
  6. Step 6: Final answer
    x = 43,290.30

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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.