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Finding the Fourth Proportional to 48,915.60, 73,351.80 and 19,323.60

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Solution

The fourth proportional to 48,915.60, 73,351.80 and 19,323.60 is: 28,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,915.60 : 73,351.80 = 19,323.60 : x
  2. Step 2: Convert to fraction form
    48,915.60/73,351.80 = 19,323.60/x
  3. Step 3: Cross multiply
    48,915.60x = 73,351.80 × 19,323.60
  4. Step 4: Simplify right side
    48,915.60x = 1,417,420,842.48
  5. Step 5: Solve for x
    x = 1,417,420,842.48/48,915.60
  6. Step 6: Final answer
    x = 28,976.87

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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.