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Finding the Fourth Proportional to 1.16, 1.75 and 1.04

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Solution

The fourth proportional to 1.16, 1.75 and 1.04 is: 1.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.16 : 1.75 = 1.04 : x
  2. Step 2: Convert to fraction form
    1.16/1.75 = 1.04/x
  3. Step 3: Cross multiply
    1.16x = 1.75 × 1.04
  4. Step 4: Simplify right side
    1.16x = 1.82
  5. Step 5: Solve for x
    x = 1.82/1.16
  6. Step 6: Final answer
    x = 1.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.