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Finding the Fourth Proportional to 69,925.42, 96,499.56 and 39,709.90

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Solution

The fourth proportional to 69,925.42, 96,499.56 and 39,709.90 is: 54,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,925.42 : 96,499.56 = 39,709.90 : x
  2. Step 2: Convert to fraction form
    69,925.42/96,499.56 = 39,709.90/x
  3. Step 3: Cross multiply
    69,925.42x = 96,499.56 × 39,709.90
  4. Step 4: Simplify right side
    69,925.42x = 3,831,987,877.64
  5. Step 5: Solve for x
    x = 3,831,987,877.64/69,925.42
  6. Step 6: Final answer
    x = 54,801.07

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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.