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Finding the Fourth Proportional to 47,893.97, 71,840.97 and 19,783.13

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Solution

The fourth proportional to 47,893.97, 71,840.97 and 19,783.13 is: 29,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,893.97 : 71,840.97 = 19,783.13 : x
  2. Step 2: Convert to fraction form
    47,893.97/71,840.97 = 19,783.13/x
  3. Step 3: Cross multiply
    47,893.97x = 71,840.97 × 19,783.13
  4. Step 4: Simplify right side
    47,893.97x = 1,421,239,248.84
  5. Step 5: Solve for x
    x = 1,421,239,248.84/47,893.97
  6. Step 6: Final answer
    x = 29,674.70

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Similar ratio
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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.