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Finding the Fourth Proportional to 12,101.70, 18,152.55 and 11,468.10

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Solution

The fourth proportional to 12,101.70, 18,152.55 and 11,468.10 is: 17,202.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.70 : 18,152.55 = 11,468.10 : x
  2. Step 2: Convert to fraction form
    12,101.70/18,152.55 = 11,468.10/x
  3. Step 3: Cross multiply
    12,101.70x = 18,152.55 × 11,468.10
  4. Step 4: Simplify right side
    12,101.70x = 208,175,258.66
  5. Step 5: Solve for x
    x = 208,175,258.66/12,101.70
  6. Step 6: Final answer
    x = 17,202.15

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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.