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Finding the Fourth Proportional to 7,807.95, 10,775.24 and 4,271.17

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Solution

The fourth proportional to 7,807.95, 10,775.24 and 4,271.17 is: 5,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.95 : 10,775.24 = 4,271.17 : x
  2. Step 2: Convert to fraction form
    7,807.95/10,775.24 = 4,271.17/x
  3. Step 3: Cross multiply
    7,807.95x = 10,775.24 × 4,271.17
  4. Step 4: Simplify right side
    7,807.95x = 46,022,833.54
  5. Step 5: Solve for x
    x = 46,022,833.54/7,807.95
  6. Step 6: Final answer
    x = 5,894.35

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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.