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Finding the Fourth Proportional to 9,983.40, 14,991.84 and 9,586.10

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Solution

The fourth proportional to 9,983.40, 14,991.84 and 9,586.10 is: 14,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.40 : 14,991.84 = 9,586.10 : x
  2. Step 2: Convert to fraction form
    9,983.40/14,991.84 = 9,586.10/x
  3. Step 3: Cross multiply
    9,983.40x = 14,991.84 × 9,586.10
  4. Step 4: Simplify right side
    9,983.40x = 143,713,277.42
  5. Step 5: Solve for x
    x = 143,713,277.42/9,983.40
  6. Step 6: Final answer
    x = 14,395.22

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Double scale
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Similar ratio
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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.