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Finding the Third Proportional to 0.53 and 0.76

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Solution

The third proportional to 0.53 and 0.76 is: 1.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.53 : 0.76 = 0.76 : x
  2. Step 2: Convert to fraction form
    0.53/0.76 = 0.76/x
  3. Step 3: Cross multiply
    0.53x = 0.76 × 0.76
  4. Step 4: Simplify right side
    0.53x = 0.57
  5. Step 5: Solve for x
    x = 0.57/0.53
  6. Step 6: Final answer
    x = 1.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.