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Finding the Fourth Proportional to 75,294.12, 112,939.92 and 18,368.58

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Solution

The fourth proportional to 75,294.12, 112,939.92 and 18,368.58 is: 27,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,294.12 : 112,939.92 = 18,368.58 : x
  2. Step 2: Convert to fraction form
    75,294.12/112,939.92 = 18,368.58/x
  3. Step 3: Cross multiply
    75,294.12x = 112,939.92 × 18,368.58
  4. Step 4: Simplify right side
    75,294.12x = 2,074,545,955.71
  5. Step 5: Solve for x
    x = 2,074,545,955.71/75,294.12
  6. Step 6: Final answer
    x = 27,552.56

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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.