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Finding the Fourth Proportional to 26,451, 36,506.70 and 15,279.48

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Solution

The fourth proportional to 26,451, 36,506.70 and 15,279.48 is: 21,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,451 : 36,506.70 = 15,279.48 : x
  2. Step 2: Convert to fraction form
    26,451/36,506.70 = 15,279.48/x
  3. Step 3: Cross multiply
    26,451x = 36,506.70 × 15,279.48
  4. Step 4: Simplify right side
    26,451x = 557,803,392.52
  5. Step 5: Solve for x
    x = 557,803,392.52/26,451
  6. Step 6: Final answer
    x = 21,088.18

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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.