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Finding the Fourth Proportional to 50,038.32, 68,973.48 and 39,411.12

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Solution

The fourth proportional to 50,038.32, 68,973.48 and 39,411.12 is: 54,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,038.32 : 68,973.48 = 39,411.12 : x
  2. Step 2: Convert to fraction form
    50,038.32/68,973.48 = 39,411.12/x
  3. Step 3: Cross multiply
    50,038.32x = 68,973.48 × 39,411.12
  4. Step 4: Simplify right side
    50,038.32x = 2,718,322,097.10
  5. Step 5: Solve for x
    x = 2,718,322,097.10/50,038.32
  6. Step 6: Final answer
    x = 54,324.81

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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.