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Finding the Fourth Proportional to 48,866.48, 67,470 and 43,157.60

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Solution

The fourth proportional to 48,866.48, 67,470 and 43,157.60 is: 59,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,866.48 : 67,470 = 43,157.60 : x
  2. Step 2: Convert to fraction form
    48,866.48/67,470 = 43,157.60/x
  3. Step 3: Cross multiply
    48,866.48x = 67,470 × 43,157.60
  4. Step 4: Simplify right side
    48,866.48x = 2,911,843,272
  5. Step 5: Solve for x
    x = 2,911,843,272/48,866.48
  6. Step 6: Final answer
    x = 59,587.74

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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.