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Finding the Fourth Proportional to 53,646.67, 80,470.00 and 28,610.87

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Solution

The fourth proportional to 53,646.67, 80,470.00 and 28,610.87 is: 42,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,646.67 : 80,470.00 = 28,610.87 : x
  2. Step 2: Convert to fraction form
    53,646.67/80,470.00 = 28,610.87/x
  3. Step 3: Cross multiply
    53,646.67x = 80,470.00 × 28,610.87
  4. Step 4: Simplify right side
    53,646.67x = 2,302,316,163.50
  5. Step 5: Solve for x
    x = 2,302,316,163.50/53,646.67
  6. Step 6: Final answer
    x = 42,916.30

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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.