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Finding the Fourth Proportional to 14,618.36, 21,931.02 and 4,757.60

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Solution

The fourth proportional to 14,618.36, 21,931.02 and 4,757.60 is: 7,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.36 : 21,931.02 = 4,757.60 : x
  2. Step 2: Convert to fraction form
    14,618.36/21,931.02 = 4,757.60/x
  3. Step 3: Cross multiply
    14,618.36x = 21,931.02 × 4,757.60
  4. Step 4: Simplify right side
    14,618.36x = 104,339,020.75
  5. Step 5: Solve for x
    x = 104,339,020.75/14,618.36
  6. Step 6: Final answer
    x = 7,137.53

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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.