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Finding the Fourth Proportional to 26,574, 36,678.60 and 15,402.48

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Solution

The fourth proportional to 26,574, 36,678.60 and 15,402.48 is: 21,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,574 : 36,678.60 = 15,402.48 : x
  2. Step 2: Convert to fraction form
    26,574/36,678.60 = 15,402.48/x
  3. Step 3: Cross multiply
    26,574x = 36,678.60 × 15,402.48
  4. Step 4: Simplify right side
    26,574x = 564,941,402.93
  5. Step 5: Solve for x
    x = 564,941,402.93/26,574
  6. Step 6: Final answer
    x = 21,259.18

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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.