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Finding the Fourth Proportional to 70,041.62, 96,656.97 and 39,826.94

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Solution

The fourth proportional to 70,041.62, 96,656.97 and 39,826.94 is: 54,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,041.62 : 96,656.97 = 39,826.94 : x
  2. Step 2: Convert to fraction form
    70,041.62/96,656.97 = 39,826.94/x
  3. Step 3: Cross multiply
    70,041.62x = 96,656.97 × 39,826.94
  4. Step 4: Simplify right side
    70,041.62x = 3,849,551,010.84
  5. Step 5: Solve for x
    x = 3,849,551,010.84/70,041.62
  6. Step 6: Final answer
    x = 54,960.91

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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.