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Finding the Fourth Proportional to 54,119.88, 74,657.88 and 36,215.64

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Solution

The fourth proportional to 54,119.88, 74,657.88 and 36,215.64 is: 49,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,119.88 : 74,657.88 = 36,215.64 : x
  2. Step 2: Convert to fraction form
    54,119.88/74,657.88 = 36,215.64/x
  3. Step 3: Cross multiply
    54,119.88x = 74,657.88 × 36,215.64
  4. Step 4: Simplify right side
    54,119.88x = 2,703,782,905.24
  5. Step 5: Solve for x
    x = 2,703,782,905.24/54,119.88
  6. Step 6: Final answer
    x = 49,959.14

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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.