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Finding the Fourth Proportional to 34,684.43, 47,864.43 and 18,768.87

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Solution

The fourth proportional to 34,684.43, 47,864.43 and 18,768.87 is: 25,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,684.43 : 47,864.43 = 18,768.87 : x
  2. Step 2: Convert to fraction form
    34,684.43/47,864.43 = 18,768.87/x
  3. Step 3: Cross multiply
    34,684.43x = 47,864.43 × 18,768.87
  4. Step 4: Simplify right side
    34,684.43x = 898,361,264.29
  5. Step 5: Solve for x
    x = 898,361,264.29/34,684.43
  6. Step 6: Final answer
    x = 25,901.00

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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.