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Finding the Fourth Proportional to 64,328.57, 96,459.94 and 26,878.42

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Solution

The fourth proportional to 64,328.57, 96,459.94 and 26,878.42 is: 40,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,328.57 : 96,459.94 = 26,878.42 : x
  2. Step 2: Convert to fraction form
    64,328.57/96,459.94 = 26,878.42/x
  3. Step 3: Cross multiply
    64,328.57x = 96,459.94 × 26,878.42
  4. Step 4: Simplify right side
    64,328.57x = 2,592,690,780.49
  5. Step 5: Solve for x
    x = 2,592,690,780.49/64,328.57
  6. Step 6: Final answer
    x = 40,303.88

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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.