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Finding the Fourth Proportional to 8,647.48, 11,933.62 and 5,061.65

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Solution

The fourth proportional to 8,647.48, 11,933.62 and 5,061.65 is: 6,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.48 : 11,933.62 = 5,061.65 : x
  2. Step 2: Convert to fraction form
    8,647.48/11,933.62 = 5,061.65/x
  3. Step 3: Cross multiply
    8,647.48x = 11,933.62 × 5,061.65
  4. Step 4: Simplify right side
    8,647.48x = 60,403,812.14
  5. Step 5: Solve for x
    x = 60,403,812.14/8,647.48
  6. Step 6: Final answer
    x = 6,985.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.