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Finding the Fourth Proportional to 64,820.46, 97,230.67 and 15,572.46

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Solution

The fourth proportional to 64,820.46, 97,230.67 and 15,572.46 is: 23,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,820.46 : 97,230.67 = 15,572.46 : x
  2. Step 2: Convert to fraction form
    64,820.46/97,230.67 = 15,572.46/x
  3. Step 3: Cross multiply
    64,820.46x = 97,230.67 × 15,572.46
  4. Step 4: Simplify right side
    64,820.46x = 1,514,120,680.42
  5. Step 5: Solve for x
    x = 1,514,120,680.42/64,820.46
  6. Step 6: Final answer
    x = 23,358.68

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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.