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Finding the Fourth Proportional to 48,761.80, 72,996.90 and 29,030.20

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Solution

The fourth proportional to 48,761.80, 72,996.90 and 29,030.20 is: 43,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,761.80 : 72,996.90 = 29,030.20 : x
  2. Step 2: Convert to fraction form
    48,761.80/72,996.90 = 29,030.20/x
  3. Step 3: Cross multiply
    48,761.80x = 72,996.90 × 29,030.20
  4. Step 4: Simplify right side
    48,761.80x = 2,119,114,606.38
  5. Step 5: Solve for x
    x = 2,119,114,606.38/48,761.80
  6. Step 6: Final answer
    x = 43,458.50

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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.