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Finding the Fourth Proportional to 48,785.80, 73,200.30 and 17,643.40

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Solution

The fourth proportional to 48,785.80, 73,200.30 and 17,643.40 is: 26,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,785.80 : 73,200.30 = 17,643.40 : x
  2. Step 2: Convert to fraction form
    48,785.80/73,200.30 = 17,643.40/x
  3. Step 3: Cross multiply
    48,785.80x = 73,200.30 × 17,643.40
  4. Step 4: Simplify right side
    48,785.80x = 1,291,502,173.02
  5. Step 5: Solve for x
    x = 1,291,502,173.02/48,785.80
  6. Step 6: Final answer
    x = 26,472.91

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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.