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Finding the Fourth Proportional to 60,332.60, 90,511.91 and 18,209.16

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Solution

The fourth proportional to 60,332.60, 90,511.91 and 18,209.16 is: 27,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,332.60 : 90,511.91 = 18,209.16 : x
  2. Step 2: Convert to fraction form
    60,332.60/90,511.91 = 18,209.16/x
  3. Step 3: Cross multiply
    60,332.60x = 90,511.91 × 18,209.16
  4. Step 4: Simplify right side
    60,332.60x = 1,648,145,307.49
  5. Step 5: Solve for x
    x = 1,648,145,307.49/60,332.60
  6. Step 6: Final answer
    x = 27,317.66

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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.