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Finding the Fourth Proportional to 67,712.70, 93,346.14 and 47,506.98

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Solution

The fourth proportional to 67,712.70, 93,346.14 and 47,506.98 is: 65,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,712.70 : 93,346.14 = 47,506.98 : x
  2. Step 2: Convert to fraction form
    67,712.70/93,346.14 = 47,506.98/x
  3. Step 3: Cross multiply
    67,712.70x = 93,346.14 × 47,506.98
  4. Step 4: Simplify right side
    67,712.70x = 4,434,593,206.06
  5. Step 5: Solve for x
    x = 4,434,593,206.06/67,712.70
  6. Step 6: Final answer
    x = 65,491.31

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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.