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Finding the Fourth Proportional to 22,443.66, 33,666.34 and 8,402.21

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Solution

The fourth proportional to 22,443.66, 33,666.34 and 8,402.21 is: 12,603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.66 : 33,666.34 = 8,402.21 : x
  2. Step 2: Convert to fraction form
    22,443.66/33,666.34 = 8,402.21/x
  3. Step 3: Cross multiply
    22,443.66x = 33,666.34 × 8,402.21
  4. Step 4: Simplify right side
    22,443.66x = 282,871,658.61
  5. Step 5: Solve for x
    x = 282,871,658.61/22,443.66
  6. Step 6: Final answer
    x = 12,603.63

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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.