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Finding the Fourth Proportional to 60,866.45, 91,309.48 and 18,746.52

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Solution

The fourth proportional to 60,866.45, 91,309.48 and 18,746.52 is: 28,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,866.45 : 91,309.48 = 18,746.52 : x
  2. Step 2: Convert to fraction form
    60,866.45/91,309.48 = 18,746.52/x
  3. Step 3: Cross multiply
    60,866.45x = 91,309.48 × 18,746.52
  4. Step 4: Simplify right side
    60,866.45x = 1,711,734,709.18
  5. Step 5: Solve for x
    x = 1,711,734,709.18/60,866.45
  6. Step 6: Final answer
    x = 28,122.80

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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.