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Finding the Fourth Proportional to 8,681.74, 13,017.09 and 7,365.94

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Solution

The fourth proportional to 8,681.74, 13,017.09 and 7,365.94 is: 11,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.74 : 13,017.09 = 7,365.94 : x
  2. Step 2: Convert to fraction form
    8,681.74/13,017.09 = 7,365.94/x
  3. Step 3: Cross multiply
    8,681.74x = 13,017.09 × 7,365.94
  4. Step 4: Simplify right side
    8,681.74x = 95,883,103.91
  5. Step 5: Solve for x
    x = 95,883,103.91/8,681.74
  6. Step 6: Final answer
    x = 11,044.23

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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.