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Finding the Fourth Proportional to 26,978.55, 37,228.65 and 15,041.18

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Solution

The fourth proportional to 26,978.55, 37,228.65 and 15,041.18 is: 20,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978.55 : 37,228.65 = 15,041.18 : x
  2. Step 2: Convert to fraction form
    26,978.55/37,228.65 = 15,041.18/x
  3. Step 3: Cross multiply
    26,978.55x = 37,228.65 × 15,041.18
  4. Step 4: Simplify right side
    26,978.55x = 559,962,639.66
  5. Step 5: Solve for x
    x = 559,962,639.66/26,978.55
  6. Step 6: Final answer
    x = 20,755.85

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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.