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Finding the Fourth Proportional to 47,222.95, 70,787.09 and 21,940.23

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Solution

The fourth proportional to 47,222.95, 70,787.09 and 21,940.23 is: 32,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,222.95 : 70,787.09 = 21,940.23 : x
  2. Step 2: Convert to fraction form
    47,222.95/70,787.09 = 21,940.23/x
  3. Step 3: Cross multiply
    47,222.95x = 70,787.09 × 21,940.23
  4. Step 4: Simplify right side
    47,222.95x = 1,553,084,696.96
  5. Step 5: Solve for x
    x = 1,553,084,696.96/47,222.95
  6. Step 6: Final answer
    x = 32,888.35

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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.