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Finding the Fourth Proportional to 12,501.60, 18,737.80 and 5,561.52

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Solution

The fourth proportional to 12,501.60, 18,737.80 and 5,561.52 is: 8,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.60 : 18,737.80 = 5,561.52 : x
  2. Step 2: Convert to fraction form
    12,501.60/18,737.80 = 5,561.52/x
  3. Step 3: Cross multiply
    12,501.60x = 18,737.80 × 5,561.52
  4. Step 4: Simplify right side
    12,501.60x = 104,210,649.46
  5. Step 5: Solve for x
    x = 104,210,649.46/12,501.60
  6. Step 6: Final answer
    x = 8,335.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.