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Finding the Fourth Proportional to 11,865.60, 17,760.12 and 9,498.18

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Solution

The fourth proportional to 11,865.60, 17,760.12 and 9,498.18 is: 14,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.60 : 17,760.12 = 9,498.18 : x
  2. Step 2: Convert to fraction form
    11,865.60/17,760.12 = 9,498.18/x
  3. Step 3: Cross multiply
    11,865.60x = 17,760.12 × 9,498.18
  4. Step 4: Simplify right side
    11,865.60x = 168,688,816.58
  5. Step 5: Solve for x
    x = 168,688,816.58/11,865.60
  6. Step 6: Final answer
    x = 14,216.63

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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.