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Finding the Fourth Proportional to 65,000.76, 89,699.96 and 36,320.89

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Solution

The fourth proportional to 65,000.76, 89,699.96 and 36,320.89 is: 50,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.76 : 89,699.96 = 36,320.89 : x
  2. Step 2: Convert to fraction form
    65,000.76/89,699.96 = 36,320.89/x
  3. Step 3: Cross multiply
    65,000.76x = 89,699.96 × 36,320.89
  4. Step 4: Simplify right side
    65,000.76x = 3,257,982,583.09
  5. Step 5: Solve for x
    x = 3,257,982,583.09/65,000.76
  6. Step 6: Final answer
    x = 50,122.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.