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Finding the Fourth Proportional to 1.03, 1.53 and 0.95

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Solution

The fourth proportional to 1.03, 1.53 and 0.95 is: 1.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.03 : 1.53 = 0.95 : x
  2. Step 2: Convert to fraction form
    1.03/1.53 = 0.95/x
  3. Step 3: Cross multiply
    1.03x = 1.53 × 0.95
  4. Step 4: Simplify right side
    1.03x = 1.45
  5. Step 5: Solve for x
    x = 1.45/1.03
  6. Step 6: Final answer
    x = 1.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.