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Finding the Fourth Proportional to 7,565.99, 10,440.90 and 4,208.73

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Solution

The fourth proportional to 7,565.99, 10,440.90 and 4,208.73 is: 5,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.99 : 10,440.90 = 4,208.73 : x
  2. Step 2: Convert to fraction form
    7,565.99/10,440.90 = 4,208.73/x
  3. Step 3: Cross multiply
    7,565.99x = 10,440.90 × 4,208.73
  4. Step 4: Simplify right side
    7,565.99x = 43,942,889.90
  5. Step 5: Solve for x
    x = 43,942,889.90/7,565.99
  6. Step 6: Final answer
    x = 5,807.95

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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.