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Finding the Fourth Proportional to 1.42, 1.95 and 0.93

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Solution

The fourth proportional to 1.42, 1.95 and 0.93 is: 1.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.42 : 1.95 = 0.93 : x
  2. Step 2: Convert to fraction form
    1.42/1.95 = 0.93/x
  3. Step 3: Cross multiply
    1.42x = 1.95 × 0.93
  4. Step 4: Simplify right side
    1.42x = 1.82
  5. Step 5: Solve for x
    x = 1.82/1.42
  6. Step 6: Final answer
    x = 1.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.