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Finding the Fourth Proportional to 19,252.50, 26,568.53 and 10,420.50

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Solution

The fourth proportional to 19,252.50, 26,568.53 and 10,420.50 is: 14,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,252.50 : 26,568.53 = 10,420.50 : x
  2. Step 2: Convert to fraction form
    19,252.50/26,568.53 = 10,420.50/x
  3. Step 3: Cross multiply
    19,252.50x = 26,568.53 × 10,420.50
  4. Step 4: Simplify right side
    19,252.50x = 276,857,366.87
  5. Step 5: Solve for x
    x = 276,857,366.87/19,252.50
  6. Step 6: Final answer
    x = 14,380.33

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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.