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Finding the Third Proportional to 929.63 and 1,228.88

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Solution

The third proportional to 929.63 and 1,228.88 is: 1,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.63 : 1,228.88 = 1,228.88 : x
  2. Step 2: Convert to fraction form
    929.63/1,228.88 = 1,228.88/x
  3. Step 3: Cross multiply
    929.63x = 1,228.88 × 1,228.88
  4. Step 4: Simplify right side
    929.63x = 1,510,133.77
  5. Step 5: Solve for x
    x = 1,510,133.77/929.63
  6. Step 6: Final answer
    x = 1,624.45

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.