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Finding the Fourth Proportional to 34,245.69, 47,258.11 and 19,138.41

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Solution

The fourth proportional to 34,245.69, 47,258.11 and 19,138.41 is: 26,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,245.69 : 47,258.11 = 19,138.41 : x
  2. Step 2: Convert to fraction form
    34,245.69/47,258.11 = 19,138.41/x
  3. Step 3: Cross multiply
    34,245.69x = 47,258.11 × 19,138.41
  4. Step 4: Simplify right side
    34,245.69x = 904,445,254.47
  5. Step 5: Solve for x
    x = 904,445,254.47/34,245.69
  6. Step 6: Final answer
    x = 26,410.49

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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.