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Finding the Fourth Proportional to 26,436.88, 36,486.13 and 15,258.88

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Solution

The fourth proportional to 26,436.88, 36,486.13 and 15,258.88 is: 21,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,436.88 : 36,486.13 = 15,258.88 : x
  2. Step 2: Convert to fraction form
    26,436.88/36,486.13 = 15,258.88/x
  3. Step 3: Cross multiply
    26,436.88x = 36,486.13 × 15,258.88
  4. Step 4: Simplify right side
    26,436.88x = 556,737,296.90
  5. Step 5: Solve for x
    x = 556,737,296.90/26,436.88
  6. Step 6: Final answer
    x = 21,059.12

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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.