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Finding the Fourth Proportional to 29,623.60, 40,881 and 16,879.60

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Solution

The fourth proportional to 29,623.60, 40,881 and 16,879.60 is: 23,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,623.60 : 40,881 = 16,879.60 : x
  2. Step 2: Convert to fraction form
    29,623.60/40,881 = 16,879.60/x
  3. Step 3: Cross multiply
    29,623.60x = 40,881 × 16,879.60
  4. Step 4: Simplify right side
    29,623.60x = 690,054,927.60
  5. Step 5: Solve for x
    x = 690,054,927.60/29,623.60
  6. Step 6: Final answer
    x = 23,294.09

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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.