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Finding the Fourth Proportional to 10,404.40, 15,628.38 and 8,844.16

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Solution

The fourth proportional to 10,404.40, 15,628.38 and 8,844.16 is: 13,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404.40 : 15,628.38 = 8,844.16 : x
  2. Step 2: Convert to fraction form
    10,404.40/15,628.38 = 8,844.16/x
  3. Step 3: Cross multiply
    10,404.40x = 15,628.38 × 8,844.16
  4. Step 4: Simplify right side
    10,404.40x = 138,219,893.26
  5. Step 5: Solve for x
    x = 138,219,893.26/10,404.40
  6. Step 6: Final answer
    x = 13,284.75

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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.