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Finding the Fourth Proportional to 23,313.53, 34,972.74 and 9,987.87

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Solution

The fourth proportional to 23,313.53, 34,972.74 and 9,987.87 is: 14,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,313.53 : 34,972.74 = 9,987.87 : x
  2. Step 2: Convert to fraction form
    23,313.53/34,972.74 = 9,987.87/x
  3. Step 3: Cross multiply
    23,313.53x = 34,972.74 × 9,987.87
  4. Step 4: Simplify right side
    23,313.53x = 349,303,180.66
  5. Step 5: Solve for x
    x = 349,303,180.66/23,313.53
  6. Step 6: Final answer
    x = 14,982.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.