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Finding the Fourth Proportional to 9,381.06, 14,059.17 and 4,989.06

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Solution

The fourth proportional to 9,381.06, 14,059.17 and 4,989.06 is: 7,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.06 : 14,059.17 = 4,989.06 : x
  2. Step 2: Convert to fraction form
    9,381.06/14,059.17 = 4,989.06/x
  3. Step 3: Cross multiply
    9,381.06x = 14,059.17 × 4,989.06
  4. Step 4: Simplify right side
    9,381.06x = 70,142,042.68
  5. Step 5: Solve for x
    x = 70,142,042.68/9,381.06
  6. Step 6: Final answer
    x = 7,476.98

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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.