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Finding the Fourth Proportional to 14,141.80, 19,772.60 and 14,141.80

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Solution

The fourth proportional to 14,141.80, 19,772.60 and 14,141.80 is: 19,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.80 : 19,772.60 = 14,141.80 : x
  2. Step 2: Convert to fraction form
    14,141.80/19,772.60 = 14,141.80/x
  3. Step 3: Cross multiply
    14,141.80x = 19,772.60 × 14,141.80
  4. Step 4: Simplify right side
    14,141.80x = 279,620,154.68
  5. Step 5: Solve for x
    x = 279,620,154.68/14,141.80
  6. Step 6: Final answer
    x = 19,772.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.