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Finding the Fourth Proportional to 8,047.80, 12,062.34 and 4,763.64

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Solution

The fourth proportional to 8,047.80, 12,062.34 and 4,763.64 is: 7,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.80 : 12,062.34 = 4,763.64 : x
  2. Step 2: Convert to fraction form
    8,047.80/12,062.34 = 4,763.64/x
  3. Step 3: Cross multiply
    8,047.80x = 12,062.34 × 4,763.64
  4. Step 4: Simplify right side
    8,047.80x = 57,460,645.32
  5. Step 5: Solve for x
    x = 57,460,645.32/8,047.80
  6. Step 6: Final answer
    x = 7,139.92

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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.