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Finding the Fourth Proportional to 48,642.39, 72,963.60 and 11,706.39

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Solution

The fourth proportional to 48,642.39, 72,963.60 and 11,706.39 is: 17,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,642.39 : 72,963.60 = 11,706.39 : x
  2. Step 2: Convert to fraction form
    48,642.39/72,963.60 = 11,706.39/x
  3. Step 3: Cross multiply
    48,642.39x = 72,963.60 × 11,706.39
  4. Step 4: Simplify right side
    48,642.39x = 854,140,357.40
  5. Step 5: Solve for x
    x = 854,140,357.40/48,642.39
  6. Step 6: Final answer
    x = 17,559.59

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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.