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Finding the Fourth Proportional to 65,875.71, 98,813.70 and 30,839.97

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Solution

The fourth proportional to 65,875.71, 98,813.70 and 30,839.97 is: 46,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.71 : 98,813.70 = 30,839.97 : x
  2. Step 2: Convert to fraction form
    65,875.71/98,813.70 = 30,839.97/x
  3. Step 3: Cross multiply
    65,875.71x = 98,813.70 × 30,839.97
  4. Step 4: Simplify right side
    65,875.71x = 3,047,410,895.32
  5. Step 5: Solve for x
    x = 3,047,410,895.32/65,875.71
  6. Step 6: Final answer
    x = 46,260.01

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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.