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Finding the Fourth Proportional to 61,683.48, 85,124.34 and 36,208.08

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Solution

The fourth proportional to 61,683.48, 85,124.34 and 36,208.08 is: 49,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683.48 : 85,124.34 = 36,208.08 : x
  2. Step 2: Convert to fraction form
    61,683.48/85,124.34 = 36,208.08/x
  3. Step 3: Cross multiply
    61,683.48x = 85,124.34 × 36,208.08
  4. Step 4: Simplify right side
    61,683.48x = 3,082,188,912.67
  5. Step 5: Solve for x
    x = 3,082,188,912.67/61,683.48
  6. Step 6: Final answer
    x = 49,967.82

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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.