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Finding the Fourth Proportional to 38,603.40, 57,905.10 and 16,411.20

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Solution

The fourth proportional to 38,603.40, 57,905.10 and 16,411.20 is: 24,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.40 : 57,905.10 = 16,411.20 : x
  2. Step 2: Convert to fraction form
    38,603.40/57,905.10 = 16,411.20/x
  3. Step 3: Cross multiply
    38,603.40x = 57,905.10 × 16,411.20
  4. Step 4: Simplify right side
    38,603.40x = 950,292,177.12
  5. Step 5: Solve for x
    x = 950,292,177.12/38,603.40
  6. Step 6: Final answer
    x = 24,616.80

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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.