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Finding the Fourth Proportional to 14,666.55, 21,947.27 and 12,698.97

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Solution

The fourth proportional to 14,666.55, 21,947.27 and 12,698.97 is: 19,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.55 : 21,947.27 = 12,698.97 : x
  2. Step 2: Convert to fraction form
    14,666.55/21,947.27 = 12,698.97/x
  3. Step 3: Cross multiply
    14,666.55x = 21,947.27 × 12,698.97
  4. Step 4: Simplify right side
    14,666.55x = 278,707,700.19
  5. Step 5: Solve for x
    x = 278,707,700.19/14,666.55
  6. Step 6: Final answer
    x = 19,002.95

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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.