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Finding the Fourth Proportional to 9,041.80, 13,562.70 and 7,948.30

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Solution

The fourth proportional to 9,041.80, 13,562.70 and 7,948.30 is: 11,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,041.80 : 13,562.70 = 7,948.30 : x
  2. Step 2: Convert to fraction form
    9,041.80/13,562.70 = 7,948.30/x
  3. Step 3: Cross multiply
    9,041.80x = 13,562.70 × 7,948.30
  4. Step 4: Simplify right side
    9,041.80x = 107,800,408.41
  5. Step 5: Solve for x
    x = 107,800,408.41/9,041.80
  6. Step 6: Final answer
    x = 11,922.45

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1.5x scale

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.