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Finding the Fourth Proportional to 22,012.88, 33,018.71 and 6,218.99

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Solution

The fourth proportional to 22,012.88, 33,018.71 and 6,218.99 is: 9,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.88 : 33,018.71 = 6,218.99 : x
  2. Step 2: Convert to fraction form
    22,012.88/33,018.71 = 6,218.99/x
  3. Step 3: Cross multiply
    22,012.88x = 33,018.71 × 6,218.99
  4. Step 4: Simplify right side
    22,012.88x = 205,343,125.40
  5. Step 5: Solve for x
    x = 205,343,125.40/22,012.88
  6. Step 6: Final answer
    x = 9,328.32

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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.