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Finding the Fourth Proportional to 60,972.51, 91,468.65 and 18,842.76

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Solution

The fourth proportional to 60,972.51, 91,468.65 and 18,842.76 is: 28,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,972.51 : 91,468.65 = 18,842.76 : x
  2. Step 2: Convert to fraction form
    60,972.51/91,468.65 = 18,842.76/x
  3. Step 3: Cross multiply
    60,972.51x = 91,468.65 × 18,842.76
  4. Step 4: Simplify right side
    60,972.51x = 1,723,521,819.47
  5. Step 5: Solve for x
    x = 1,723,521,819.47/60,972.51
  6. Step 6: Final answer
    x = 28,267.19

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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.