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Finding the Fourth Proportional to 63,070.72, 94,586.64 and 21,508

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Solution

The fourth proportional to 63,070.72, 94,586.64 and 21,508 is: 32,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,070.72 : 94,586.64 = 21,508 : x
  2. Step 2: Convert to fraction form
    63,070.72/94,586.64 = 21,508/x
  3. Step 3: Cross multiply
    63,070.72x = 94,586.64 × 21,508
  4. Step 4: Simplify right side
    63,070.72x = 2,034,369,453.12
  5. Step 5: Solve for x
    x = 2,034,369,453.12/63,070.72
  6. Step 6: Final answer
    x = 32,255.37

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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.