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Finding the Fourth Proportional to 0.58, 0.88 and 0.56

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Solution

The fourth proportional to 0.58, 0.88 and 0.56 is: 0.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.58 : 0.88 = 0.56 : x
  2. Step 2: Convert to fraction form
    0.58/0.88 = 0.56/x
  3. Step 3: Cross multiply
    0.58x = 0.88 × 0.56
  4. Step 4: Simplify right side
    0.58x = 0.49
  5. Step 5: Solve for x
    x = 0.49/0.58
  6. Step 6: Final answer
    x = 0.83

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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.