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Finding the Fourth Proportional to 14,560.40, 21,840.60 and 11,104.40

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Solution

The fourth proportional to 14,560.40, 21,840.60 and 11,104.40 is: 16,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,560.40 : 21,840.60 = 11,104.40 : x
  2. Step 2: Convert to fraction form
    14,560.40/21,840.60 = 11,104.40/x
  3. Step 3: Cross multiply
    14,560.40x = 21,840.60 × 11,104.40
  4. Step 4: Simplify right side
    14,560.40x = 242,526,758.64
  5. Step 5: Solve for x
    x = 242,526,758.64/14,560.40
  6. Step 6: Final answer
    x = 16,656.60

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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.