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Finding the Fourth Proportional to 24,125.20, 36,216.60 and 13,603.60

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Solution

The fourth proportional to 24,125.20, 36,216.60 and 13,603.60 is: 20,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,125.20 : 36,216.60 = 13,603.60 : x
  2. Step 2: Convert to fraction form
    24,125.20/36,216.60 = 13,603.60/x
  3. Step 3: Cross multiply
    24,125.20x = 36,216.60 × 13,603.60
  4. Step 4: Simplify right side
    24,125.20x = 492,676,139.76
  5. Step 5: Solve for x
    x = 492,676,139.76/24,125.20
  6. Step 6: Final answer
    x = 20,421.64

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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.