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Finding the Fourth Proportional to 17,810.72, 26,698.72 and 7,425.44

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Solution

The fourth proportional to 17,810.72, 26,698.72 and 7,425.44 is: 11,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,810.72 : 26,698.72 = 7,425.44 : x
  2. Step 2: Convert to fraction form
    17,810.72/26,698.72 = 7,425.44/x
  3. Step 3: Cross multiply
    17,810.72x = 26,698.72 × 7,425.44
  4. Step 4: Simplify right side
    17,810.72x = 198,249,743.44
  5. Step 5: Solve for x
    x = 198,249,743.44/17,810.72
  6. Step 6: Final answer
    x = 11,130.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.