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Finding the Third Proportional to 0.63 and 0.88

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Solution

The third proportional to 0.63 and 0.88 is: 1.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.63 : 0.88 = 0.88 : x
  2. Step 2: Convert to fraction form
    0.63/0.88 = 0.88/x
  3. Step 3: Cross multiply
    0.63x = 0.88 × 0.88
  4. Step 4: Simplify right side
    0.63x = 0.77
  5. Step 5: Solve for x
    x = 0.77/0.63
  6. Step 6: Final answer
    x = 1.23

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.