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Finding the Fourth Proportional to 74,412.66, 111,583.79 and 28,841.71

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Solution

The fourth proportional to 74,412.66, 111,583.79 and 28,841.71 is: 43,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,412.66 : 111,583.79 = 28,841.71 : x
  2. Step 2: Convert to fraction form
    74,412.66/111,583.79 = 28,841.71/x
  3. Step 3: Cross multiply
    74,412.66x = 111,583.79 × 28,841.71
  4. Step 4: Simplify right side
    74,412.66x = 3,218,267,167.67
  5. Step 5: Solve for x
    x = 3,218,267,167.67/74,412.66
  6. Step 6: Final answer
    x = 43,248.92

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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.