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Finding the Fourth Proportional to 38,031.48, 52,485.30 and 22,117.68

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Solution

The fourth proportional to 38,031.48, 52,485.30 and 22,117.68 is: 30,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,031.48 : 52,485.30 = 22,117.68 : x
  2. Step 2: Convert to fraction form
    38,031.48/52,485.30 = 22,117.68/x
  3. Step 3: Cross multiply
    38,031.48x = 52,485.30 × 22,117.68
  4. Step 4: Simplify right side
    38,031.48x = 1,160,853,070.10
  5. Step 5: Solve for x
    x = 1,160,853,070.10/38,031.48
  6. Step 6: Final answer
    x = 30,523.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.