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Finding the Fourth Proportional to 1.68, 2.53 and 0.93

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Solution

The fourth proportional to 1.68, 2.53 and 0.93 is: 1.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.68 : 2.53 = 0.93 : x
  2. Step 2: Convert to fraction form
    1.68/2.53 = 0.93/x
  3. Step 3: Cross multiply
    1.68x = 2.53 × 0.93
  4. Step 4: Simplify right side
    1.68x = 2.35
  5. Step 5: Solve for x
    x = 2.35/1.68
  6. Step 6: Final answer
    x = 1.40

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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.