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Finding the Fourth Proportional to 26,139, 36,071.82 and 14,963.16

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Solution

The fourth proportional to 26,139, 36,071.82 and 14,963.16 is: 20,649.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139 : 36,071.82 = 14,963.16 : x
  2. Step 2: Convert to fraction form
    26,139/36,071.82 = 14,963.16/x
  3. Step 3: Cross multiply
    26,139x = 36,071.82 × 14,963.16
  4. Step 4: Simplify right side
    26,139x = 539,748,414.15
  5. Step 5: Solve for x
    x = 539,748,414.15/26,139
  6. Step 6: Final answer
    x = 20,649.16

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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.