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Finding the Fourth Proportional to 62,903.48, 86,838.95 and 48,531.05

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Solution

The fourth proportional to 62,903.48, 86,838.95 and 48,531.05 is: 66,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,903.48 : 86,838.95 = 48,531.05 : x
  2. Step 2: Convert to fraction form
    62,903.48/86,838.95 = 48,531.05/x
  3. Step 3: Cross multiply
    62,903.48x = 86,838.95 × 48,531.05
  4. Step 4: Simplify right side
    62,903.48x = 4,214,385,111.53
  5. Step 5: Solve for x
    x = 4,214,385,111.53/62,903.48
  6. Step 6: Final answer
    x = 66,997.64

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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.