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Finding the Fourth Proportional to 48,581.58, 66,605.61 and 47,695.98

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Solution

The fourth proportional to 48,581.58, 66,605.61 and 47,695.98 is: 65,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,581.58 : 66,605.61 = 47,695.98 : x
  2. Step 2: Convert to fraction form
    48,581.58/66,605.61 = 47,695.98/x
  3. Step 3: Cross multiply
    48,581.58x = 66,605.61 × 47,695.98
  4. Step 4: Simplify right side
    48,581.58x = 3,176,819,842.45
  5. Step 5: Solve for x
    x = 3,176,819,842.45/48,581.58
  6. Step 6: Final answer
    x = 65,391.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.