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Finding the Third Proportional to 1.04 and 1.16

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Solution

The third proportional to 1.04 and 1.16 is: 1.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.04 : 1.16 = 1.16 : x
  2. Step 2: Convert to fraction form
    1.04/1.16 = 1.16/x
  3. Step 3: Cross multiply
    1.04x = 1.16 × 1.16
  4. Step 4: Simplify right side
    1.04x = 1.35
  5. Step 5: Solve for x
    x = 1.35/1.04
  6. Step 6: Final answer
    x = 1.30

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.