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Finding the Third Proportional to 4,903.50 and 6,987.75

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Solution

The third proportional to 4,903.50 and 6,987.75 is: 9,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.50 : 6,987.75 = 6,987.75 : x
  2. Step 2: Convert to fraction form
    4,903.50/6,987.75 = 6,987.75/x
  3. Step 3: Cross multiply
    4,903.50x = 6,987.75 × 6,987.75
  4. Step 4: Simplify right side
    4,903.50x = 48,828,650.06
  5. Step 5: Solve for x
    x = 48,828,650.06/4,903.50
  6. Step 6: Final answer
    x = 9,957.92

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.