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Finding the Third Proportional to 6,243 and 9,931.50

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Solution

The third proportional to 6,243 and 9,931.50 is: 15,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243 : 9,931.50 = 9,931.50 : x
  2. Step 2: Convert to fraction form
    6,243/9,931.50 = 9,931.50/x
  3. Step 3: Cross multiply
    6,243x = 9,931.50 × 9,931.50
  4. Step 4: Simplify right side
    6,243x = 98,634,692.25
  5. Step 5: Solve for x
    x = 98,634,692.25/6,243
  6. Step 6: Final answer
    x = 15,799.25

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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.