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Finding the Fourth Proportional to 18,889.52, 26,075.22 and 12,175.52

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Solution

The fourth proportional to 18,889.52, 26,075.22 and 12,175.52 is: 16,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.52 : 26,075.22 = 12,175.52 : x
  2. Step 2: Convert to fraction form
    18,889.52/26,075.22 = 12,175.52/x
  3. Step 3: Cross multiply
    18,889.52x = 26,075.22 × 12,175.52
  4. Step 4: Simplify right side
    18,889.52x = 317,479,362.61
  5. Step 5: Solve for x
    x = 317,479,362.61/18,889.52
  6. Step 6: Final answer
    x = 16,807.17

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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.