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Finding the Fourth Proportional to 59,399, 89,127.77 and 27,811.20

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Solution

The fourth proportional to 59,399, 89,127.77 and 27,811.20 is: 41,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,399 : 89,127.77 = 27,811.20 : x
  2. Step 2: Convert to fraction form
    59,399/89,127.77 = 27,811.20/x
  3. Step 3: Cross multiply
    59,399x = 89,127.77 × 27,811.20
  4. Step 4: Simplify right side
    59,399x = 2,478,750,237.02
  5. Step 5: Solve for x
    x = 2,478,750,237.02/59,399
  6. Step 6: Final answer
    x = 41,730.50

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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.