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Finding the Fourth Proportional to 1,048.96, 1,575.45 and 1,006.90

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Solution

The fourth proportional to 1,048.96, 1,575.45 and 1,006.90 is: 1,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.96 : 1,575.45 = 1,006.90 : x
  2. Step 2: Convert to fraction form
    1,048.96/1,575.45 = 1,006.90/x
  3. Step 3: Cross multiply
    1,048.96x = 1,575.45 × 1,006.90
  4. Step 4: Simplify right side
    1,048.96x = 1,586,320.61
  5. Step 5: Solve for x
    x = 1,586,320.61/1,048.96
  6. Step 6: Final answer
    x = 1,512.28

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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.