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Finding the Fourth Proportional to 5,724.87, 7,903.89 and 4,395.93

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Solution

The fourth proportional to 5,724.87, 7,903.89 and 4,395.93 is: 6,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.87 : 7,903.89 = 4,395.93 : x
  2. Step 2: Convert to fraction form
    5,724.87/7,903.89 = 4,395.93/x
  3. Step 3: Cross multiply
    5,724.87x = 7,903.89 × 4,395.93
  4. Step 4: Simplify right side
    5,724.87x = 34,744,947.17
  5. Step 5: Solve for x
    x = 34,744,947.17/5,724.87
  6. Step 6: Final answer
    x = 6,069.12

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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.