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Finding the Fourth Proportional to 26,706.71, 36,858.76 and 15,376.68

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Solution

The fourth proportional to 26,706.71, 36,858.76 and 15,376.68 is: 21,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,706.71 : 36,858.76 = 15,376.68 : x
  2. Step 2: Convert to fraction form
    26,706.71/36,858.76 = 15,376.68/x
  3. Step 3: Cross multiply
    26,706.71x = 36,858.76 × 15,376.68
  4. Step 4: Simplify right side
    26,706.71x = 566,765,319.28
  5. Step 5: Solve for x
    x = 566,765,319.28/26,706.71
  6. Step 6: Final answer
    x = 21,221.83

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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.