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Finding the Fourth Proportional to 7,013.52, 9,678.42 and 4,028.94

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Solution

The fourth proportional to 7,013.52, 9,678.42 and 4,028.94 is: 5,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.52 : 9,678.42 = 4,028.94 : x
  2. Step 2: Convert to fraction form
    7,013.52/9,678.42 = 4,028.94/x
  3. Step 3: Cross multiply
    7,013.52x = 9,678.42 × 4,028.94
  4. Step 4: Simplify right side
    7,013.52x = 38,993,773.47
  5. Step 5: Solve for x
    x = 38,993,773.47/7,013.52
  6. Step 6: Final answer
    x = 5,559.80

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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.