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Finding the Fourth Proportional to 7,240.83, 9,992.68 and 5,666.19

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Solution

The fourth proportional to 7,240.83, 9,992.68 and 5,666.19 is: 7,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.83 : 9,992.68 = 5,666.19 : x
  2. Step 2: Convert to fraction form
    7,240.83/9,992.68 = 5,666.19/x
  3. Step 3: Cross multiply
    7,240.83x = 9,992.68 × 5,666.19
  4. Step 4: Simplify right side
    7,240.83x = 56,620,395.16
  5. Step 5: Solve for x
    x = 56,620,395.16/7,240.83
  6. Step 6: Final answer
    x = 7,819.60

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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.