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Finding the Fourth Proportional to 64,931.65, 97,401.80 and 22,806.61

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Solution

The fourth proportional to 64,931.65, 97,401.80 and 22,806.61 is: 34,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.65 : 97,401.80 = 22,806.61 : x
  2. Step 2: Convert to fraction form
    64,931.65/97,401.80 = 22,806.61/x
  3. Step 3: Cross multiply
    64,931.65x = 97,401.80 × 22,806.61
  4. Step 4: Simplify right side
    64,931.65x = 2,221,404,865.90
  5. Step 5: Solve for x
    x = 2,221,404,865.90/64,931.65
  6. Step 6: Final answer
    x = 34,211.43

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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.