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Finding the Fourth Proportional to 5,772.48, 7,966.56 and 4,009.92

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Solution

The fourth proportional to 5,772.48, 7,966.56 and 4,009.92 is: 5,534.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772.48 : 7,966.56 = 4,009.92 : x
  2. Step 2: Convert to fraction form
    5,772.48/7,966.56 = 4,009.92/x
  3. Step 3: Cross multiply
    5,772.48x = 7,966.56 × 4,009.92
  4. Step 4: Simplify right side
    5,772.48x = 31,945,268.28
  5. Step 5: Solve for x
    x = 31,945,268.28/5,772.48
  6. Step 6: Final answer
    x = 5,534.06

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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.