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Finding the Fourth Proportional to 34,218.88, 47,222.07 and 19,314.88

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Solution

The fourth proportional to 34,218.88, 47,222.07 and 19,314.88 is: 26,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.88 : 47,222.07 = 19,314.88 : x
  2. Step 2: Convert to fraction form
    34,218.88/47,222.07 = 19,314.88/x
  3. Step 3: Cross multiply
    34,218.88x = 47,222.07 × 19,314.88
  4. Step 4: Simplify right side
    34,218.88x = 912,088,379.29
  5. Step 5: Solve for x
    x = 912,088,379.29/34,218.88
  6. Step 6: Final answer
    x = 26,654.54

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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.