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Finding the Third Proportional to 5,840 and 9,280

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Solution

The third proportional to 5,840 and 9,280 is: 14,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,840 : 9,280 = 9,280 : x
  2. Step 2: Convert to fraction form
    5,840/9,280 = 9,280/x
  3. Step 3: Cross multiply
    5,840x = 9,280 × 9,280
  4. Step 4: Simplify right side
    5,840x = 86,118,400
  5. Step 5: Solve for x
    x = 86,118,400/5,840
  6. Step 6: Final answer
    x = 14,746.30

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.