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Finding the Fourth Proportional to 9,896.40, 14,844.60 and 8,924.40

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Solution

The fourth proportional to 9,896.40, 14,844.60 and 8,924.40 is: 13,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,896.40 : 14,844.60 = 8,924.40 : x
  2. Step 2: Convert to fraction form
    9,896.40/14,844.60 = 8,924.40/x
  3. Step 3: Cross multiply
    9,896.40x = 14,844.60 × 8,924.40
  4. Step 4: Simplify right side
    9,896.40x = 132,479,148.24
  5. Step 5: Solve for x
    x = 132,479,148.24/9,896.40
  6. Step 6: Final answer
    x = 13,386.60

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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.