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Finding the Fourth Proportional to 64,112, 96,156.12 and 17,358.80

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Solution

The fourth proportional to 64,112, 96,156.12 and 17,358.80 is: 26,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,112 : 96,156.12 = 17,358.80 : x
  2. Step 2: Convert to fraction form
    64,112/96,156.12 = 17,358.80/x
  3. Step 3: Cross multiply
    64,112x = 96,156.12 × 17,358.80
  4. Step 4: Simplify right side
    64,112x = 1,669,154,855.86
  5. Step 5: Solve for x
    x = 1,669,154,855.86/64,112
  6. Step 6: Final answer
    x = 26,034.98

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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.