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Finding the Fourth Proportional to 64,939.74, 97,412.39 and 25,505.39

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Solution

The fourth proportional to 64,939.74, 97,412.39 and 25,505.39 is: 38,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,939.74 : 97,412.39 = 25,505.39 : x
  2. Step 2: Convert to fraction form
    64,939.74/97,412.39 = 25,505.39/x
  3. Step 3: Cross multiply
    64,939.74x = 97,412.39 × 25,505.39
  4. Step 4: Simplify right side
    64,939.74x = 2,484,541,305.08
  5. Step 5: Solve for x
    x = 2,484,541,305.08/64,939.74
  6. Step 6: Final answer
    x = 38,259.18

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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.