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Finding the Fourth Proportional to 62,611.72, 86,413.03 and 38,746.08

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Solution

The fourth proportional to 62,611.72, 86,413.03 and 38,746.08 is: 53,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,611.72 : 86,413.03 = 38,746.08 : x
  2. Step 2: Convert to fraction form
    62,611.72/86,413.03 = 38,746.08/x
  3. Step 3: Cross multiply
    62,611.72x = 86,413.03 × 38,746.08
  4. Step 4: Simplify right side
    62,611.72x = 3,348,166,076.56
  5. Step 5: Solve for x
    x = 3,348,166,076.56/62,611.72
  6. Step 6: Final answer
    x = 53,475.07

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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.