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Finding the Fourth Proportional to 64,967.29, 97,489.80 and 28,031.29

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Solution

The fourth proportional to 64,967.29, 97,489.80 and 28,031.29 is: 42,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.29 : 97,489.80 = 28,031.29 : x
  2. Step 2: Convert to fraction form
    64,967.29/97,489.80 = 28,031.29/x
  3. Step 3: Cross multiply
    64,967.29x = 97,489.80 × 28,031.29
  4. Step 4: Simplify right side
    64,967.29x = 2,732,764,855.84
  5. Step 5: Solve for x
    x = 2,732,764,855.84/64,967.29
  6. Step 6: Final answer
    x = 42,063.70

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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.