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Finding the Fourth Proportional to 60,866.26, 91,309.20 and 18,746.33

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Solution

The fourth proportional to 60,866.26, 91,309.20 and 18,746.33 is: 28,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,866.26 : 91,309.20 = 18,746.33 : x
  2. Step 2: Convert to fraction form
    60,866.26/91,309.20 = 18,746.33/x
  3. Step 3: Cross multiply
    60,866.26x = 91,309.20 × 18,746.33
  4. Step 4: Simplify right side
    60,866.26x = 1,711,712,281.10
  5. Step 5: Solve for x
    x = 1,711,712,281.10/60,866.26
  6. Step 6: Final answer
    x = 28,122.51

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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.