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Finding the Fourth Proportional to 40,508.61, 60,776.89 and 16,828.87

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Solution

The fourth proportional to 40,508.61, 60,776.89 and 16,828.87 is: 25,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,508.61 : 60,776.89 = 16,828.87 : x
  2. Step 2: Convert to fraction form
    40,508.61/60,776.89 = 16,828.87/x
  3. Step 3: Cross multiply
    40,508.61x = 60,776.89 × 16,828.87
  4. Step 4: Simplify right side
    40,508.61x = 1,022,806,338.74
  5. Step 5: Solve for x
    x = 1,022,806,338.74/40,508.61
  6. Step 6: Final answer
    x = 25,249.11

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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.