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Finding the Fourth Proportional to 7,017.40, 9,685.92 and 4,033.54

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Solution

The fourth proportional to 7,017.40, 9,685.92 and 4,033.54 is: 5,567.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.40 : 9,685.92 = 4,033.54 : x
  2. Step 2: Convert to fraction form
    7,017.40/9,685.92 = 4,033.54/x
  3. Step 3: Cross multiply
    7,017.40x = 9,685.92 × 4,033.54
  4. Step 4: Simplify right side
    7,017.40x = 39,068,545.76
  5. Step 5: Solve for x
    x = 39,068,545.76/7,017.40
  6. Step 6: Final answer
    x = 5,567.38

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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.