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Finding the Fourth Proportional to 60,703.20, 91,022.40 and 25,603.20

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Solution

The fourth proportional to 60,703.20, 91,022.40 and 25,603.20 is: 38,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,703.20 : 91,022.40 = 25,603.20 : x
  2. Step 2: Convert to fraction form
    60,703.20/91,022.40 = 25,603.20/x
  3. Step 3: Cross multiply
    60,703.20x = 91,022.40 × 25,603.20
  4. Step 4: Simplify right side
    60,703.20x = 2,330,464,711.68
  5. Step 5: Solve for x
    x = 2,330,464,711.68/60,703.20
  6. Step 6: Final answer
    x = 38,391.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.