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Finding the Fourth Proportional to 64,431.04, 96,674.40 and 34,869.88

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Solution

The fourth proportional to 64,431.04, 96,674.40 and 34,869.88 is: 52,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,431.04 : 96,674.40 = 34,869.88 : x
  2. Step 2: Convert to fraction form
    64,431.04/96,674.40 = 34,869.88/x
  3. Step 3: Cross multiply
    64,431.04x = 96,674.40 × 34,869.88
  4. Step 4: Simplify right side
    64,431.04x = 3,371,024,727.07
  5. Step 5: Solve for x
    x = 3,371,024,727.07/64,431.04
  6. Step 6: Final answer
    x = 52,319.89

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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.