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Finding the Fourth Proportional to 11,799.60, 16,276.40 and 7,551.60

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Solution

The fourth proportional to 11,799.60, 16,276.40 and 7,551.60 is: 10,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,799.60 : 16,276.40 = 7,551.60 : x
  2. Step 2: Convert to fraction form
    11,799.60/16,276.40 = 7,551.60/x
  3. Step 3: Cross multiply
    11,799.60x = 16,276.40 × 7,551.60
  4. Step 4: Simplify right side
    11,799.60x = 122,912,862.24
  5. Step 5: Solve for x
    x = 122,912,862.24/11,799.60
  6. Step 6: Final answer
    x = 10,416.70

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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.