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Finding the Fourth Proportional to 11,937.40, 17,906.45 and 5,698.08

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Solution

The fourth proportional to 11,937.40, 17,906.45 and 5,698.08 is: 8,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.40 : 17,906.45 = 5,698.08 : x
  2. Step 2: Convert to fraction form
    11,937.40/17,906.45 = 5,698.08/x
  3. Step 3: Cross multiply
    11,937.40x = 17,906.45 × 5,698.08
  4. Step 4: Simplify right side
    11,937.40x = 102,032,384.62
  5. Step 5: Solve for x
    x = 102,032,384.62/11,937.40
  6. Step 6: Final answer
    x = 8,547.29

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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.