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Finding the Fourth Proportional to 50,705.54, 69,973.80 and 28,349.54

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Solution

The fourth proportional to 50,705.54, 69,973.80 and 28,349.54 is: 39,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,705.54 : 69,973.80 = 28,349.54 : x
  2. Step 2: Convert to fraction form
    50,705.54/69,973.80 = 28,349.54/x
  3. Step 3: Cross multiply
    50,705.54x = 69,973.80 × 28,349.54
  4. Step 4: Simplify right side
    50,705.54x = 1,983,725,042.05
  5. Step 5: Solve for x
    x = 1,983,725,042.05/50,705.54
  6. Step 6: Final answer
    x = 39,122.45

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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.