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Finding the Fourth Proportional to 7,134.60, 10,701.90 and 3,030.60

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Solution

The fourth proportional to 7,134.60, 10,701.90 and 3,030.60 is: 4,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.60 : 10,701.90 = 3,030.60 : x
  2. Step 2: Convert to fraction form
    7,134.60/10,701.90 = 3,030.60/x
  3. Step 3: Cross multiply
    7,134.60x = 10,701.90 × 3,030.60
  4. Step 4: Simplify right side
    7,134.60x = 32,433,178.14
  5. Step 5: Solve for x
    x = 32,433,178.14/7,134.60
  6. Step 6: Final answer
    x = 4,545.90

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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.