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Finding the Fourth Proportional to 69,878.23, 96,430.99 and 38,047.13

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Solution

The fourth proportional to 69,878.23, 96,430.99 and 38,047.13 is: 52,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,878.23 : 96,430.99 = 38,047.13 : x
  2. Step 2: Convert to fraction form
    69,878.23/96,430.99 = 38,047.13/x
  3. Step 3: Cross multiply
    69,878.23x = 96,430.99 × 38,047.13
  4. Step 4: Simplify right side
    69,878.23x = 3,668,921,740.17
  5. Step 5: Solve for x
    x = 3,668,921,740.17/69,878.23
  6. Step 6: Final answer
    x = 52,504.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.