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Finding the Fourth Proportional to 14,618.71, 20,173.55 and 8,952.56

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Solution

The fourth proportional to 14,618.71, 20,173.55 and 8,952.56 is: 12,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.71 : 20,173.55 = 8,952.56 : x
  2. Step 2: Convert to fraction form
    14,618.71/20,173.55 = 8,952.56/x
  3. Step 3: Cross multiply
    14,618.71x = 20,173.55 × 8,952.56
  4. Step 4: Simplify right side
    14,618.71x = 180,604,916.79
  5. Step 5: Solve for x
    x = 180,604,916.79/14,618.71
  6. Step 6: Final answer
    x = 12,354.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.