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Finding the Fourth Proportional to 26,902, 37,124.76 and 15,126

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Solution

The fourth proportional to 26,902, 37,124.76 and 15,126 is: 20,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,902 : 37,124.76 = 15,126 : x
  2. Step 2: Convert to fraction form
    26,902/37,124.76 = 15,126/x
  3. Step 3: Cross multiply
    26,902x = 37,124.76 × 15,126
  4. Step 4: Simplify right side
    26,902x = 561,549,119.76
  5. Step 5: Solve for x
    x = 561,549,119.76/26,902
  6. Step 6: Final answer
    x = 20,873.88

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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.