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Finding the Fourth Proportional to 22,603.78, 33,903.99 and 11,503.54

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Solution

The fourth proportional to 22,603.78, 33,903.99 and 11,503.54 is: 17,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,603.78 : 33,903.99 = 11,503.54 : x
  2. Step 2: Convert to fraction form
    22,603.78/33,903.99 = 11,503.54/x
  3. Step 3: Cross multiply
    22,603.78x = 33,903.99 × 11,503.54
  4. Step 4: Simplify right side
    22,603.78x = 390,015,905.12
  5. Step 5: Solve for x
    x = 390,015,905.12/22,603.78
  6. Step 6: Final answer
    x = 17,254.46

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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.