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Finding the Fourth Proportional to 7,394.40, 10,202.09 and 4,737.20

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Solution

The fourth proportional to 7,394.40, 10,202.09 and 4,737.20 is: 6,535.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.40 : 10,202.09 = 4,737.20 : x
  2. Step 2: Convert to fraction form
    7,394.40/10,202.09 = 4,737.20/x
  3. Step 3: Cross multiply
    7,394.40x = 10,202.09 × 4,737.20
  4. Step 4: Simplify right side
    7,394.40x = 48,329,266.05
  5. Step 5: Solve for x
    x = 48,329,266.05/7,394.40
  6. Step 6: Final answer
    x = 6,535.93

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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.