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Finding the Fourth Proportional to 8,679.23, 13,024.02 and 7,973.40

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Solution

The fourth proportional to 8,679.23, 13,024.02 and 7,973.40 is: 11,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.23 : 13,024.02 = 7,973.40 : x
  2. Step 2: Convert to fraction form
    8,679.23/13,024.02 = 7,973.40/x
  3. Step 3: Cross multiply
    8,679.23x = 13,024.02 × 7,973.40
  4. Step 4: Simplify right side
    8,679.23x = 103,845,721.07
  5. Step 5: Solve for x
    x = 103,845,721.07/8,679.23
  6. Step 6: Final answer
    x = 11,964.86

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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.