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Finding the Fourth Proportional to 39,672.55, 59,508.55 and 10,090

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Solution

The fourth proportional to 39,672.55, 59,508.55 and 10,090 is: 15,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.55 : 59,508.55 = 10,090 : x
  2. Step 2: Convert to fraction form
    39,672.55/59,508.55 = 10,090/x
  3. Step 3: Cross multiply
    39,672.55x = 59,508.55 × 10,090
  4. Step 4: Simplify right side
    39,672.55x = 600,441,269.50
  5. Step 5: Solve for x
    x = 600,441,269.50/39,672.55
  6. Step 6: Final answer
    x = 15,134.93

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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.