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Finding the Fourth Proportional to 50,785.01, 70,083.51 and 28,123.51

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Solution

The fourth proportional to 50,785.01, 70,083.51 and 28,123.51 is: 38,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,785.01 : 70,083.51 = 28,123.51 : x
  2. Step 2: Convert to fraction form
    50,785.01/70,083.51 = 28,123.51/x
  3. Step 3: Cross multiply
    50,785.01x = 70,083.51 × 28,123.51
  4. Step 4: Simplify right side
    50,785.01x = 1,970,993,943.90
  5. Step 5: Solve for x
    x = 1,970,993,943.90/50,785.01
  6. Step 6: Final answer
    x = 38,810.55

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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.