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Finding the Fourth Proportional to 38,361, 52,940.34 and 21,595.08

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Solution

The fourth proportional to 38,361, 52,940.34 and 21,595.08 is: 29,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,361 : 52,940.34 = 21,595.08 : x
  2. Step 2: Convert to fraction form
    38,361/52,940.34 = 21,595.08/x
  3. Step 3: Cross multiply
    38,361x = 52,940.34 × 21,595.08
  4. Step 4: Simplify right side
    38,361x = 1,143,250,877.53
  5. Step 5: Solve for x
    x = 1,143,250,877.53/38,361
  6. Step 6: Final answer
    x = 29,802.43

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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.