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Finding the Fourth Proportional to 63,778.80, 88,015.14 and 35,486.28

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Solution

The fourth proportional to 63,778.80, 88,015.14 and 35,486.28 is: 48,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,778.80 : 88,015.14 = 35,486.28 : x
  2. Step 2: Convert to fraction form
    63,778.80/88,015.14 = 35,486.28/x
  3. Step 3: Cross multiply
    63,778.80x = 88,015.14 × 35,486.28
  4. Step 4: Simplify right side
    63,778.80x = 3,123,329,902.28
  5. Step 5: Solve for x
    x = 3,123,329,902.28/63,778.80
  6. Step 6: Final answer
    x = 48,971.29

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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.