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Finding the Fourth Proportional to 7,013.57, 9,678.59 and 4,029.33

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Solution

The fourth proportional to 7,013.57, 9,678.59 and 4,029.33 is: 5,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.57 : 9,678.59 = 4,029.33 : x
  2. Step 2: Convert to fraction form
    7,013.57/9,678.59 = 4,029.33/x
  3. Step 3: Cross multiply
    7,013.57x = 9,678.59 × 4,029.33
  4. Step 4: Simplify right side
    7,013.57x = 38,998,212.90
  5. Step 5: Solve for x
    x = 38,998,212.90/7,013.57
  6. Step 6: Final answer
    x = 5,560.40

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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.