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Finding the Fourth Proportional to 69,630.42, 104,349.95 and 37,957.20

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Solution

The fourth proportional to 69,630.42, 104,349.95 and 37,957.20 is: 56,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,630.42 : 104,349.95 = 37,957.20 : x
  2. Step 2: Convert to fraction form
    69,630.42/104,349.95 = 37,957.20/x
  3. Step 3: Cross multiply
    69,630.42x = 104,349.95 × 37,957.20
  4. Step 4: Simplify right side
    69,630.42x = 3,960,831,483.38
  5. Step 5: Solve for x
    x = 3,960,831,483.38/69,630.42
  6. Step 6: Final answer
    x = 56,883.63

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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.