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Finding the Fourth Proportional to 49,333.80, 74,000.70 and 28,265.70

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Solution

The fourth proportional to 49,333.80, 74,000.70 and 28,265.70 is: 42,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,333.80 : 74,000.70 = 28,265.70 : x
  2. Step 2: Convert to fraction form
    49,333.80/74,000.70 = 28,265.70/x
  3. Step 3: Cross multiply
    49,333.80x = 74,000.70 × 28,265.70
  4. Step 4: Simplify right side
    49,333.80x = 2,091,681,585.99
  5. Step 5: Solve for x
    x = 2,091,681,585.99/49,333.80
  6. Step 6: Final answer
    x = 42,398.55

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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.