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Finding the Fourth Proportional to 23,220.71, 34,809.63 and 8,426.06

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Solution

The fourth proportional to 23,220.71, 34,809.63 and 8,426.06 is: 12,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.71 : 34,809.63 = 8,426.06 : x
  2. Step 2: Convert to fraction form
    23,220.71/34,809.63 = 8,426.06/x
  3. Step 3: Cross multiply
    23,220.71x = 34,809.63 × 8,426.06
  4. Step 4: Simplify right side
    23,220.71x = 293,308,030.96
  5. Step 5: Solve for x
    x = 293,308,030.96/23,220.71
  6. Step 6: Final answer
    x = 12,631.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.