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Finding the Fourth Proportional to 64,398.63, 96,598.76 and 20,024.40

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Solution

The fourth proportional to 64,398.63, 96,598.76 and 20,024.40 is: 30,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,398.63 : 96,598.76 = 20,024.40 : x
  2. Step 2: Convert to fraction form
    64,398.63/96,598.76 = 20,024.40/x
  3. Step 3: Cross multiply
    64,398.63x = 96,598.76 × 20,024.40
  4. Step 4: Simplify right side
    64,398.63x = 1,934,332,109.62
  5. Step 5: Solve for x
    x = 1,934,332,109.62/64,398.63
  6. Step 6: Final answer
    x = 30,036.85

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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.