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Finding the Fourth Proportional to 52,905.31, 73,009.17 and 28,706.17

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Solution

The fourth proportional to 52,905.31, 73,009.17 and 28,706.17 is: 39,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,905.31 : 73,009.17 = 28,706.17 : x
  2. Step 2: Convert to fraction form
    52,905.31/73,009.17 = 28,706.17/x
  3. Step 3: Cross multiply
    52,905.31x = 73,009.17 × 28,706.17
  4. Step 4: Simplify right side
    52,905.31x = 2,095,813,645.58
  5. Step 5: Solve for x
    x = 2,095,813,645.58/52,905.31
  6. Step 6: Final answer
    x = 39,614.43

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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.