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Finding the Fourth Proportional to 3,572.56, 5,358.67 and 975.50

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Solution

The fourth proportional to 3,572.56, 5,358.67 and 975.50 is: 1,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.56 : 5,358.67 = 975.50 : x
  2. Step 2: Convert to fraction form
    3,572.56/5,358.67 = 975.50/x
  3. Step 3: Cross multiply
    3,572.56x = 5,358.67 × 975.50
  4. Step 4: Simplify right side
    3,572.56x = 5,227,397.20
  5. Step 5: Solve for x
    x = 5,227,397.20/3,572.56
  6. Step 6: Final answer
    x = 1,463.21

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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.