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Finding the Fourth Proportional to 86,053.67, 128,893.58 and 41,587.17

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Solution

The fourth proportional to 86,053.67, 128,893.58 and 41,587.17 is: 62,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,053.67 : 128,893.58 = 41,587.17 : x
  2. Step 2: Convert to fraction form
    86,053.67/128,893.58 = 41,587.17/x
  3. Step 3: Cross multiply
    86,053.67x = 128,893.58 × 41,587.17
  4. Step 4: Simplify right side
    86,053.67x = 5,360,319,413.06
  5. Step 5: Solve for x
    x = 5,360,319,413.06/86,053.67
  6. Step 6: Final answer
    x = 62,290.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.