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Finding the Fourth Proportional to 18,458.67, 25,472.94 and 10,075.17

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Solution

The fourth proportional to 18,458.67, 25,472.94 and 10,075.17 is: 13,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.67 : 25,472.94 = 10,075.17 : x
  2. Step 2: Convert to fraction form
    18,458.67/25,472.94 = 10,075.17/x
  3. Step 3: Cross multiply
    18,458.67x = 25,472.94 × 10,075.17
  4. Step 4: Simplify right side
    18,458.67x = 256,644,200.90
  5. Step 5: Solve for x
    x = 256,644,200.90/18,458.67
  6. Step 6: Final answer
    x = 13,903.72

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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.