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Finding the Fourth Proportional to 84,897.70, 127,314.15 and 25,713.70

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Solution

The fourth proportional to 84,897.70, 127,314.15 and 25,713.70 is: 38,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.70 : 127,314.15 = 25,713.70 : x
  2. Step 2: Convert to fraction form
    84,897.70/127,314.15 = 25,713.70/x
  3. Step 3: Cross multiply
    84,897.70x = 127,314.15 × 25,713.70
  4. Step 4: Simplify right side
    84,897.70x = 3,273,717,858.86
  5. Step 5: Solve for x
    x = 3,273,717,858.86/84,897.70
  6. Step 6: Final answer
    x = 38,560.74

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1.5x scale

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.