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Finding the Fourth Proportional to 70,679.40, 97,535.91 and 38,413.26

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Solution

The fourth proportional to 70,679.40, 97,535.91 and 38,413.26 is: 53,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,679.40 : 97,535.91 = 38,413.26 : x
  2. Step 2: Convert to fraction form
    70,679.40/97,535.91 = 38,413.26/x
  3. Step 3: Cross multiply
    70,679.40x = 97,535.91 × 38,413.26
  4. Step 4: Simplify right side
    70,679.40x = 3,746,672,270.17
  5. Step 5: Solve for x
    x = 3,746,672,270.17/70,679.40
  6. Step 6: Final answer
    x = 53,009.40

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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.