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Finding the Fourth Proportional to 5,572.38, 8,358.96 and 1,875

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Solution

The fourth proportional to 5,572.38, 8,358.96 and 1,875 is: 2,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.38 : 8,358.96 = 1,875 : x
  2. Step 2: Convert to fraction form
    5,572.38/8,358.96 = 1,875/x
  3. Step 3: Cross multiply
    5,572.38x = 8,358.96 × 1,875
  4. Step 4: Simplify right side
    5,572.38x = 15,673,050.00
  5. Step 5: Solve for x
    x = 15,673,050.00/5,572.38
  6. Step 6: Final answer
    x = 2,812.63

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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.