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Finding the Fourth Proportional to 6,862.82, 9,470.20 and 4,030.31

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Solution

The fourth proportional to 6,862.82, 9,470.20 and 4,030.31 is: 5,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.82 : 9,470.20 = 4,030.31 : x
  2. Step 2: Convert to fraction form
    6,862.82/9,470.20 = 4,030.31/x
  3. Step 3: Cross multiply
    6,862.82x = 9,470.20 × 4,030.31
  4. Step 4: Simplify right side
    6,862.82x = 38,167,841.76
  5. Step 5: Solve for x
    x = 38,167,841.76/6,862.82
  6. Step 6: Final answer
    x = 5,561.54

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1.5x scale

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.