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Finding the Fourth Proportional to 26,591.63, 36,695.03 and 15,258.78

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Solution

The fourth proportional to 26,591.63, 36,695.03 and 15,258.78 is: 21,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,591.63 : 36,695.03 = 15,258.78 : x
  2. Step 2: Convert to fraction form
    26,591.63/36,695.03 = 15,258.78/x
  3. Step 3: Cross multiply
    26,591.63x = 36,695.03 × 15,258.78
  4. Step 4: Simplify right side
    26,591.63x = 559,921,313.57
  5. Step 5: Solve for x
    x = 559,921,313.57/26,591.63
  6. Step 6: Final answer
    x = 21,056.30

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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.