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Finding the Fourth Proportional to 1,116.16, 1,675.07 and 1,048.10

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Solution

The fourth proportional to 1,116.16, 1,675.07 and 1,048.10 is: 1,572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.16 : 1,675.07 = 1,048.10 : x
  2. Step 2: Convert to fraction form
    1,116.16/1,675.07 = 1,048.10/x
  3. Step 3: Cross multiply
    1,116.16x = 1,675.07 × 1,048.10
  4. Step 4: Simplify right side
    1,116.16x = 1,755,640.87
  5. Step 5: Solve for x
    x = 1,755,640.87/1,116.16
  6. Step 6: Final answer
    x = 1,572.93

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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.