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Finding the Fourth Proportional to 12,364.61, 17,058.89 and 6,986.41

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Solution

The fourth proportional to 12,364.61, 17,058.89 and 6,986.41 is: 9,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.61 : 17,058.89 = 6,986.41 : x
  2. Step 2: Convert to fraction form
    12,364.61/17,058.89 = 6,986.41/x
  3. Step 3: Cross multiply
    12,364.61x = 17,058.89 × 6,986.41
  4. Step 4: Simplify right side
    12,364.61x = 119,180,374.50
  5. Step 5: Solve for x
    x = 119,180,374.50/12,364.61
  6. Step 6: Final answer
    x = 9,638.83

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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.