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Finding the Fourth Proportional to 3,572.87, 5,359.14 and 975.80

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Solution

The fourth proportional to 3,572.87, 5,359.14 and 975.80 is: 1,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.87 : 5,359.14 = 975.80 : x
  2. Step 2: Convert to fraction form
    3,572.87/5,359.14 = 975.80/x
  3. Step 3: Cross multiply
    3,572.87x = 5,359.14 × 975.80
  4. Step 4: Simplify right side
    3,572.87x = 5,229,448.81
  5. Step 5: Solve for x
    x = 5,229,448.81/3,572.87
  6. Step 6: Final answer
    x = 1,463.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.