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Finding the Fourth Proportional to 38,294.75, 52,846.76 and 21,527.75

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Solution

The fourth proportional to 38,294.75, 52,846.76 and 21,527.75 is: 29,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,294.75 : 52,846.76 = 21,527.75 : x
  2. Step 2: Convert to fraction form
    38,294.75/52,846.76 = 21,527.75/x
  3. Step 3: Cross multiply
    38,294.75x = 52,846.76 × 21,527.75
  4. Step 4: Simplify right side
    38,294.75x = 1,137,671,837.59
  5. Step 5: Solve for x
    x = 1,137,671,837.59/38,294.75
  6. Step 6: Final answer
    x = 29,708.30

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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.