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Finding the Fourth Proportional to 50,898.76, 70,240.31 and 28,542.76

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Solution

The fourth proportional to 50,898.76, 70,240.31 and 28,542.76 is: 39,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,898.76 : 70,240.31 = 28,542.76 : x
  2. Step 2: Convert to fraction form
    50,898.76/70,240.31 = 28,542.76/x
  3. Step 3: Cross multiply
    50,898.76x = 70,240.31 × 28,542.76
  4. Step 4: Simplify right side
    50,898.76x = 2,004,852,310.66
  5. Step 5: Solve for x
    x = 2,004,852,310.66/50,898.76
  6. Step 6: Final answer
    x = 39,389.02

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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.