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Finding the Fourth Proportional to 7,251.79, 9,998.72 and 6,130.75

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Solution

The fourth proportional to 7,251.79, 9,998.72 and 6,130.75 is: 8,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.79 : 9,998.72 = 6,130.75 : x
  2. Step 2: Convert to fraction form
    7,251.79/9,998.72 = 6,130.75/x
  3. Step 3: Cross multiply
    7,251.79x = 9,998.72 × 6,130.75
  4. Step 4: Simplify right side
    7,251.79x = 61,299,621.99
  5. Step 5: Solve for x
    x = 61,299,621.99/7,251.79
  6. Step 6: Final answer
    x = 8,453.03

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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.