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Finding the Fourth Proportional to 50,905.31, 76,368.94 and 15,363.66

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Solution

The fourth proportional to 50,905.31, 76,368.94 and 15,363.66 is: 23,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,905.31 : 76,368.94 = 15,363.66 : x
  2. Step 2: Convert to fraction form
    50,905.31/76,368.94 = 15,363.66/x
  3. Step 3: Cross multiply
    50,905.31x = 76,368.94 × 15,363.66
  4. Step 4: Simplify right side
    50,905.31x = 1,173,306,160.98
  5. Step 5: Solve for x
    x = 1,173,306,160.98/50,905.31
  6. Step 6: Final answer
    x = 23,048.80

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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.