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Finding the Fourth Proportional to 10,951.60, 16,429.80 and 3,554.80

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Solution

The fourth proportional to 10,951.60, 16,429.80 and 3,554.80 is: 5,332.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.60 : 16,429.80 = 3,554.80 : x
  2. Step 2: Convert to fraction form
    10,951.60/16,429.80 = 3,554.80/x
  3. Step 3: Cross multiply
    10,951.60x = 16,429.80 × 3,554.80
  4. Step 4: Simplify right side
    10,951.60x = 58,404,653.04
  5. Step 5: Solve for x
    x = 58,404,653.04/10,951.60
  6. Step 6: Final answer
    x = 5,332.98

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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.