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Finding the Fourth Proportional to 8,807.32, 13,216.22 and 3,542.80

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Solution

The fourth proportional to 8,807.32, 13,216.22 and 3,542.80 is: 5,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.32 : 13,216.22 = 3,542.80 : x
  2. Step 2: Convert to fraction form
    8,807.32/13,216.22 = 3,542.80/x
  3. Step 3: Cross multiply
    8,807.32x = 13,216.22 × 3,542.80
  4. Step 4: Simplify right side
    8,807.32x = 46,822,424.22
  5. Step 5: Solve for x
    x = 46,822,424.22/8,807.32
  6. Step 6: Final answer
    x = 5,316.31

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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.