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Finding the Fourth Proportional to 6,558.90, 9,062.80 and 5,243.46

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Solution

The fourth proportional to 6,558.90, 9,062.80 and 5,243.46 is: 7,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.90 : 9,062.80 = 5,243.46 : x
  2. Step 2: Convert to fraction form
    6,558.90/9,062.80 = 5,243.46/x
  3. Step 3: Cross multiply
    6,558.90x = 9,062.80 × 5,243.46
  4. Step 4: Simplify right side
    6,558.90x = 47,520,429.29
  5. Step 5: Solve for x
    x = 47,520,429.29/6,558.90
  6. Step 6: Final answer
    x = 7,245.18

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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.