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Finding the Fourth Proportional to 35,603.40, 53,406.36 and 12,229.68

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Solution

The fourth proportional to 35,603.40, 53,406.36 and 12,229.68 is: 18,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,603.40 : 53,406.36 = 12,229.68 : x
  2. Step 2: Convert to fraction form
    35,603.40/53,406.36 = 12,229.68/x
  3. Step 3: Cross multiply
    35,603.40x = 53,406.36 × 12,229.68
  4. Step 4: Simplify right side
    35,603.40x = 653,142,692.76
  5. Step 5: Solve for x
    x = 653,142,692.76/35,603.40
  6. Step 6: Final answer
    x = 18,344.95

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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.