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Finding the Fourth Proportional to 84,967.29, 127,442.69 and 25,803.48

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Solution

The fourth proportional to 84,967.29, 127,442.69 and 25,803.48 is: 38,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,967.29 : 127,442.69 = 25,803.48 : x
  2. Step 2: Convert to fraction form
    84,967.29/127,442.69 = 25,803.48/x
  3. Step 3: Cross multiply
    84,967.29x = 127,442.69 × 25,803.48
  4. Step 4: Simplify right side
    84,967.29x = 3,288,464,773.54
  5. Step 5: Solve for x
    x = 3,288,464,773.54/84,967.29
  6. Step 6: Final answer
    x = 38,702.71

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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.