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Finding the Fourth Proportional to 7,704.76, 10,650.50 and 6,873.70

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Solution

The fourth proportional to 7,704.76, 10,650.50 and 6,873.70 is: 9,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.76 : 10,650.50 = 6,873.70 : x
  2. Step 2: Convert to fraction form
    7,704.76/10,650.50 = 6,873.70/x
  3. Step 3: Cross multiply
    7,704.76x = 10,650.50 × 6,873.70
  4. Step 4: Simplify right side
    7,704.76x = 73,208,306.63
  5. Step 5: Solve for x
    x = 73,208,306.63/7,704.76
  6. Step 6: Final answer
    x = 9,501.70

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Half scale
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Double scale
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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.