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Finding the Fourth Proportional to 48,615.66, 72,923.48 and 11,679.66

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Solution

The fourth proportional to 48,615.66, 72,923.48 and 11,679.66 is: 17,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,615.66 : 72,923.48 = 11,679.66 : x
  2. Step 2: Convert to fraction form
    48,615.66/72,923.48 = 11,679.66/x
  3. Step 3: Cross multiply
    48,615.66x = 72,923.48 × 11,679.66
  4. Step 4: Simplify right side
    48,615.66x = 851,721,394.02
  5. Step 5: Solve for x
    x = 851,721,394.02/48,615.66
  6. Step 6: Final answer
    x = 17,519.49

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1.5x scale

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.