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Finding the Fourth Proportional to 7,391.70, 10,370.25 and 7,391.70

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Solution

The fourth proportional to 7,391.70, 10,370.25 and 7,391.70 is: 10,370.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.70 : 10,370.25 = 7,391.70 : x
  2. Step 2: Convert to fraction form
    7,391.70/10,370.25 = 7,391.70/x
  3. Step 3: Cross multiply
    7,391.70x = 10,370.25 × 7,391.70
  4. Step 4: Simplify right side
    7,391.70x = 76,653,776.93
  5. Step 5: Solve for x
    x = 76,653,776.93/7,391.70
  6. Step 6: Final answer
    x = 10,370.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.