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Finding the Fourth Proportional to 60,905.65, 91,374.02 and 25,355.16

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Solution

The fourth proportional to 60,905.65, 91,374.02 and 25,355.16 is: 38,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,905.65 : 91,374.02 = 25,355.16 : x
  2. Step 2: Convert to fraction form
    60,905.65/91,374.02 = 25,355.16/x
  3. Step 3: Cross multiply
    60,905.65x = 91,374.02 × 25,355.16
  4. Step 4: Simplify right side
    60,905.65x = 2,316,802,896.94
  5. Step 5: Solve for x
    x = 2,316,802,896.94/60,905.65
  6. Step 6: Final answer
    x = 38,039.21

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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.