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Finding the Fourth Proportional to 64,820.52, 97,230.80 and 15,572.52

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Solution

The fourth proportional to 64,820.52, 97,230.80 and 15,572.52 is: 23,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,820.52 : 97,230.80 = 15,572.52 : x
  2. Step 2: Convert to fraction form
    64,820.52/97,230.80 = 15,572.52/x
  3. Step 3: Cross multiply
    64,820.52x = 97,230.80 × 15,572.52
  4. Step 4: Simplify right side
    64,820.52x = 1,514,128,577.62
  5. Step 5: Solve for x
    x = 1,514,128,577.62/64,820.52
  6. Step 6: Final answer
    x = 23,358.78

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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.