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Finding the Fourth Proportional to 34,398.64, 47,471.88 and 19,294.48

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Solution

The fourth proportional to 34,398.64, 47,471.88 and 19,294.48 is: 26,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,398.64 : 47,471.88 = 19,294.48 : x
  2. Step 2: Convert to fraction form
    34,398.64/47,471.88 = 19,294.48/x
  3. Step 3: Cross multiply
    34,398.64x = 47,471.88 × 19,294.48
  4. Step 4: Simplify right side
    34,398.64x = 915,945,239.22
  5. Step 5: Solve for x
    x = 915,945,239.22/34,398.64
  6. Step 6: Final answer
    x = 26,627.37

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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.