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Finding the Fourth Proportional to 22,010.79, 33,015.95 and 7,219.53

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Solution

The fourth proportional to 22,010.79, 33,015.95 and 7,219.53 is: 10,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.79 : 33,015.95 = 7,219.53 : x
  2. Step 2: Convert to fraction form
    22,010.79/33,015.95 = 7,219.53/x
  3. Step 3: Cross multiply
    22,010.79x = 33,015.95 × 7,219.53
  4. Step 4: Simplify right side
    22,010.79x = 238,359,673.09
  5. Step 5: Solve for x
    x = 238,359,673.09/22,010.79
  6. Step 6: Final answer
    x = 10,829.22

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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.