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Finding the Fourth Proportional to 7,306.70, 10,960.05 and 7,015.10

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Solution

The fourth proportional to 7,306.70, 10,960.05 and 7,015.10 is: 10,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,306.70 : 10,960.05 = 7,015.10 : x
  2. Step 2: Convert to fraction form
    7,306.70/10,960.05 = 7,015.10/x
  3. Step 3: Cross multiply
    7,306.70x = 10,960.05 × 7,015.10
  4. Step 4: Simplify right side
    7,306.70x = 76,885,846.76
  5. Step 5: Solve for x
    x = 76,885,846.76/7,306.70
  6. Step 6: Final answer
    x = 10,522.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.