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Finding the Third Proportional to 4,680 and 7,248

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Solution

The third proportional to 4,680 and 7,248 is: 11,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680 : 7,248 = 7,248 : x
  2. Step 2: Convert to fraction form
    4,680/7,248 = 7,248/x
  3. Step 3: Cross multiply
    4,680x = 7,248 × 7,248
  4. Step 4: Simplify right side
    4,680x = 52,533,504
  5. Step 5: Solve for x
    x = 52,533,504/4,680
  6. Step 6: Final answer
    x = 11,225.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.