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Finding the Fourth Proportional to 18,907.58, 26,036.19 and 18,488.02

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Solution

The fourth proportional to 18,907.58, 26,036.19 and 18,488.02 is: 25,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.58 : 26,036.19 = 18,488.02 : x
  2. Step 2: Convert to fraction form
    18,907.58/26,036.19 = 18,488.02/x
  3. Step 3: Cross multiply
    18,907.58x = 26,036.19 × 18,488.02
  4. Step 4: Simplify right side
    18,907.58x = 481,357,378.82
  5. Step 5: Solve for x
    x = 481,357,378.82/18,907.58
  6. Step 6: Final answer
    x = 25,458.43

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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.