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Finding the Fourth Proportional to 47,223.80, 70,811.40 and 17,626.40

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Solution

The fourth proportional to 47,223.80, 70,811.40 and 17,626.40 is: 26,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,223.80 : 70,811.40 = 17,626.40 : x
  2. Step 2: Convert to fraction form
    47,223.80/70,811.40 = 17,626.40/x
  3. Step 3: Cross multiply
    47,223.80x = 70,811.40 × 17,626.40
  4. Step 4: Simplify right side
    47,223.80x = 1,248,150,060.96
  5. Step 5: Solve for x
    x = 1,248,150,060.96/47,223.80
  6. Step 6: Final answer
    x = 26,430.53

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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.