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Finding the Fourth Proportional to 1.16, 1.74 and 0.56

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Solution

The fourth proportional to 1.16, 1.74 and 0.56 is: 0.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.16 : 1.74 = 0.56 : x
  2. Step 2: Convert to fraction form
    1.16/1.74 = 0.56/x
  3. Step 3: Cross multiply
    1.16x = 1.74 × 0.56
  4. Step 4: Simplify right side
    1.16x = 0.98
  5. Step 5: Solve for x
    x = 0.98/1.16
  6. Step 6: Final answer
    x = 0.84

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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.