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Finding the Fourth Proportional to 15,007.01, 20,704.70 and 9,036.41

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Solution

The fourth proportional to 15,007.01, 20,704.70 and 9,036.41 is: 12,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.01 : 20,704.70 = 9,036.41 : x
  2. Step 2: Convert to fraction form
    15,007.01/20,704.70 = 9,036.41/x
  3. Step 3: Cross multiply
    15,007.01x = 20,704.70 × 9,036.41
  4. Step 4: Simplify right side
    15,007.01x = 187,096,112.94
  5. Step 5: Solve for x
    x = 187,096,112.94/15,007.01
  6. Step 6: Final answer
    x = 12,467.25

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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.