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Finding the Third Proportional to 2,875 and 4,888.50

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Solution

The third proportional to 2,875 and 4,888.50 is: 8,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875 : 4,888.50 = 4,888.50 : x
  2. Step 2: Convert to fraction form
    2,875/4,888.50 = 4,888.50/x
  3. Step 3: Cross multiply
    2,875x = 4,888.50 × 4,888.50
  4. Step 4: Simplify right side
    2,875x = 23,897,432.25
  5. Step 5: Solve for x
    x = 23,897,432.25/2,875
  6. Step 6: Final answer
    x = 8,312.15

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.