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Finding the Fourth Proportional to 68,873.76, 95,038.47 and 38,662.40

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Solution

The fourth proportional to 68,873.76, 95,038.47 and 38,662.40 is: 53,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,873.76 : 95,038.47 = 38,662.40 : x
  2. Step 2: Convert to fraction form
    68,873.76/95,038.47 = 38,662.40/x
  3. Step 3: Cross multiply
    68,873.76x = 95,038.47 × 38,662.40
  4. Step 4: Simplify right side
    68,873.76x = 3,674,415,342.53
  5. Step 5: Solve for x
    x = 3,674,415,342.53/68,873.76
  6. Step 6: Final answer
    x = 53,350.00

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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.