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Finding the Fourth Proportional to 61,683.66, 85,123.71 and 36,531.54

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Solution

The fourth proportional to 61,683.66, 85,123.71 and 36,531.54 is: 50,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,683.66 : 85,123.71 = 36,531.54 : x
  2. Step 2: Convert to fraction form
    61,683.66/85,123.71 = 36,531.54/x
  3. Step 3: Cross multiply
    61,683.66x = 85,123.71 × 36,531.54
  4. Step 4: Simplify right side
    61,683.66x = 3,109,700,216.81
  5. Step 5: Solve for x
    x = 3,109,700,216.81/61,683.66
  6. Step 6: Final answer
    x = 50,413.68

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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.