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Finding the Fourth Proportional to 69,918.56, 96,489.84 and 38,088.48

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Solution

The fourth proportional to 69,918.56, 96,489.84 and 38,088.48 is: 52,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,918.56 : 96,489.84 = 38,088.48 : x
  2. Step 2: Convert to fraction form
    69,918.56/96,489.84 = 38,088.48/x
  3. Step 3: Cross multiply
    69,918.56x = 96,489.84 × 38,088.48
  4. Step 4: Simplify right side
    69,918.56x = 3,675,151,341.04
  5. Step 5: Solve for x
    x = 3,675,151,341.04/69,918.56
  6. Step 6: Final answer
    x = 52,563.32

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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.