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Finding the Fourth Proportional to 49,387.68, 74,048.56 and 27,211.68

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Solution

The fourth proportional to 49,387.68, 74,048.56 and 27,211.68 is: 40,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,387.68 : 74,048.56 = 27,211.68 : x
  2. Step 2: Convert to fraction form
    49,387.68/74,048.56 = 27,211.68/x
  3. Step 3: Cross multiply
    49,387.68x = 74,048.56 × 27,211.68
  4. Step 4: Simplify right side
    49,387.68x = 2,014,985,719.18
  5. Step 5: Solve for x
    x = 2,014,985,719.18/49,387.68
  6. Step 6: Final answer
    x = 40,799.36

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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.