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Finding the Fourth Proportional to 16,898.80, 23,319.48 and 9,446.80

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Solution

The fourth proportional to 16,898.80, 23,319.48 and 9,446.80 is: 13,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.80 : 23,319.48 = 9,446.80 : x
  2. Step 2: Convert to fraction form
    16,898.80/23,319.48 = 9,446.80/x
  3. Step 3: Cross multiply
    16,898.80x = 23,319.48 × 9,446.80
  4. Step 4: Simplify right side
    16,898.80x = 220,294,463.66
  5. Step 5: Solve for x
    x = 220,294,463.66/16,898.80
  6. Step 6: Final answer
    x = 13,036.10

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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.