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Finding the Fourth Proportional to 68,866.72, 95,032.96 and 42,004.96

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Solution

The fourth proportional to 68,866.72, 95,032.96 and 42,004.96 is: 57,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,866.72 : 95,032.96 = 42,004.96 : x
  2. Step 2: Convert to fraction form
    68,866.72/95,032.96 = 42,004.96/x
  3. Step 3: Cross multiply
    68,866.72x = 95,032.96 × 42,004.96
  4. Step 4: Simplify right side
    68,866.72x = 3,991,855,683.48
  5. Step 5: Solve for x
    x = 3,991,855,683.48/68,866.72
  6. Step 6: Final answer
    x = 57,964.95

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1.5x scale

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.