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Finding the Fourth Proportional to 8,921.44, 13,373.12 and 5,803.36

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Solution

The fourth proportional to 8,921.44, 13,373.12 and 5,803.36 is: 8,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.44 : 13,373.12 = 5,803.36 : x
  2. Step 2: Convert to fraction form
    8,921.44/13,373.12 = 5,803.36/x
  3. Step 3: Cross multiply
    8,921.44x = 13,373.12 × 5,803.36
  4. Step 4: Simplify right side
    8,921.44x = 77,609,029.68
  5. Step 5: Solve for x
    x = 77,609,029.68/8,921.44
  6. Step 6: Final answer
    x = 8,699.16

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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.