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Finding the Fourth Proportional to 12,058.60, 16,659.30 and 10,829.80

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Solution

The fourth proportional to 12,058.60, 16,659.30 and 10,829.80 is: 14,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.60 : 16,659.30 = 10,829.80 : x
  2. Step 2: Convert to fraction form
    12,058.60/16,659.30 = 10,829.80/x
  3. Step 3: Cross multiply
    12,058.60x = 16,659.30 × 10,829.80
  4. Step 4: Simplify right side
    12,058.60x = 180,416,887.14
  5. Step 5: Solve for x
    x = 180,416,887.14/12,058.60
  6. Step 6: Final answer
    x = 14,961.68

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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.