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Finding the Third Proportional to 530.75 and 837.75

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Solution

The third proportional to 530.75 and 837.75 is: 1,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.75 : 837.75 = 837.75 : x
  2. Step 2: Convert to fraction form
    530.75/837.75 = 837.75/x
  3. Step 3: Cross multiply
    530.75x = 837.75 × 837.75
  4. Step 4: Simplify right side
    530.75x = 701,825.06
  5. Step 5: Solve for x
    x = 701,825.06/530.75
  6. Step 6: Final answer
    x = 1,322.33

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.