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Finding the Third Proportional to 4,730 and 6,985

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Solution

The third proportional to 4,730 and 6,985 is: 10,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,730 : 6,985 = 6,985 : x
  2. Step 2: Convert to fraction form
    4,730/6,985 = 6,985/x
  3. Step 3: Cross multiply
    4,730x = 6,985 × 6,985
  4. Step 4: Simplify right side
    4,730x = 48,790,225
  5. Step 5: Solve for x
    x = 48,790,225/4,730
  6. Step 6: Final answer
    x = 10,315.06

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.