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Finding the Fourth Proportional to 64,967.06, 97,489.47 and 28,031.06

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Solution

The fourth proportional to 64,967.06, 97,489.47 and 28,031.06 is: 42,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.06 : 97,489.47 = 28,031.06 : x
  2. Step 2: Convert to fraction form
    64,967.06/97,489.47 = 28,031.06/x
  3. Step 3: Cross multiply
    64,967.06x = 97,489.47 × 28,031.06
  4. Step 4: Simplify right side
    64,967.06x = 2,732,733,531.78
  5. Step 5: Solve for x
    x = 2,732,733,531.78/64,967.06
  6. Step 6: Final answer
    x = 42,063.37

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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.