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Finding the Fourth Proportional to 60,995.28, 91,430.28 and 34,643.76

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Solution

The fourth proportional to 60,995.28, 91,430.28 and 34,643.76 is: 51,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,995.28 : 91,430.28 = 34,643.76 : x
  2. Step 2: Convert to fraction form
    60,995.28/91,430.28 = 34,643.76/x
  3. Step 3: Cross multiply
    60,995.28x = 91,430.28 × 34,643.76
  4. Step 4: Simplify right side
    60,995.28x = 3,167,488,677.05
  5. Step 5: Solve for x
    x = 3,167,488,677.05/60,995.28
  6. Step 6: Final answer
    x = 51,930.06

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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.