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Finding the Fourth Proportional to 70,036.75, 96,655.28 and 39,824.88

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Solution

The fourth proportional to 70,036.75, 96,655.28 and 39,824.88 is: 54,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,036.75 : 96,655.28 = 39,824.88 : x
  2. Step 2: Convert to fraction form
    70,036.75/96,655.28 = 39,824.88/x
  3. Step 3: Cross multiply
    70,036.75x = 96,655.28 × 39,824.88
  4. Step 4: Simplify right side
    70,036.75x = 3,849,284,840.25
  5. Step 5: Solve for x
    x = 3,849,284,840.25/70,036.75
  6. Step 6: Final answer
    x = 54,960.93

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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.