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Finding the Fourth Proportional to 26,363.76, 36,382 and 19,655.28

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Solution

The fourth proportional to 26,363.76, 36,382 and 19,655.28 is: 27,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,363.76 : 36,382 = 19,655.28 : x
  2. Step 2: Convert to fraction form
    26,363.76/36,382 = 19,655.28/x
  3. Step 3: Cross multiply
    26,363.76x = 36,382 × 19,655.28
  4. Step 4: Simplify right side
    26,363.76x = 715,098,396.96
  5. Step 5: Solve for x
    x = 715,098,396.96/26,363.76
  6. Step 6: Final answer
    x = 27,124.29

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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.