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Finding the Fourth Proportional to 22,483.55, 33,722.12 and 7,690.31

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Solution

The fourth proportional to 22,483.55, 33,722.12 and 7,690.31 is: 11,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,483.55 : 33,722.12 = 7,690.31 : x
  2. Step 2: Convert to fraction form
    22,483.55/33,722.12 = 7,690.31/x
  3. Step 3: Cross multiply
    22,483.55x = 33,722.12 × 7,690.31
  4. Step 4: Simplify right side
    22,483.55x = 259,333,349.60
  5. Step 5: Solve for x
    x = 259,333,349.60/22,483.55
  6. Step 6: Final answer
    x = 11,534.36

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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.