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Finding the Fourth Proportional to 7,807.97, 10,775.22 and 4,271.41

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Solution

The fourth proportional to 7,807.97, 10,775.22 and 4,271.41 is: 5,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.97 : 10,775.22 = 4,271.41 : x
  2. Step 2: Convert to fraction form
    7,807.97/10,775.22 = 4,271.41/x
  3. Step 3: Cross multiply
    7,807.97x = 10,775.22 × 4,271.41
  4. Step 4: Simplify right side
    7,807.97x = 46,025,328.58
  5. Step 5: Solve for x
    x = 46,025,328.58/7,807.97
  6. Step 6: Final answer
    x = 5,894.66

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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.