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Finding the Fourth Proportional to 70,018.44, 96,627.78 and 38,189.14

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Solution

The fourth proportional to 70,018.44, 96,627.78 and 38,189.14 is: 52,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,018.44 : 96,627.78 = 38,189.14 : x
  2. Step 2: Convert to fraction form
    70,018.44/96,627.78 = 38,189.14/x
  3. Step 3: Cross multiply
    70,018.44x = 96,627.78 × 38,189.14
  4. Step 4: Simplify right side
    70,018.44x = 3,690,131,818.31
  5. Step 5: Solve for x
    x = 3,690,131,818.31/70,018.44
  6. Step 6: Final answer
    x = 52,702.29

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1.5x scale

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.