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Finding the Fourth Proportional to 26,666.64, 36,802.17 and 15,339.87

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Solution

The fourth proportional to 26,666.64, 36,802.17 and 15,339.87 is: 21,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,666.64 : 36,802.17 = 15,339.87 : x
  2. Step 2: Convert to fraction form
    26,666.64/36,802.17 = 15,339.87/x
  3. Step 3: Cross multiply
    26,666.64x = 36,802.17 × 15,339.87
  4. Step 4: Simplify right side
    26,666.64x = 564,540,503.52
  5. Step 5: Solve for x
    x = 564,540,503.52/26,666.64
  6. Step 6: Final answer
    x = 21,170.29

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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.