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Finding the Third Proportional to 530.75 and 881.50

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Solution

The third proportional to 530.75 and 881.50 is: 1,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.75 : 881.50 = 881.50 : x
  2. Step 2: Convert to fraction form
    530.75/881.50 = 881.50/x
  3. Step 3: Cross multiply
    530.75x = 881.50 × 881.50
  4. Step 4: Simplify right side
    530.75x = 777,042.25
  5. Step 5: Solve for x
    x = 777,042.25/530.75
  6. Step 6: Final answer
    x = 1,464.05

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.