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Finding the Fourth Proportional to 6,471.02, 8,917.65 and 5,574.48

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Solution

The fourth proportional to 6,471.02, 8,917.65 and 5,574.48 is: 7,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.02 : 8,917.65 = 5,574.48 : x
  2. Step 2: Convert to fraction form
    6,471.02/8,917.65 = 5,574.48/x
  3. Step 3: Cross multiply
    6,471.02x = 8,917.65 × 5,574.48
  4. Step 4: Simplify right side
    6,471.02x = 49,711,216.98
  5. Step 5: Solve for x
    x = 49,711,216.98/6,471.02
  6. Step 6: Final answer
    x = 7,682.13

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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.