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Finding the Fourth Proportional to 58,017.20, 86,896.20 and 47,649.20

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Solution

The fourth proportional to 58,017.20, 86,896.20 and 47,649.20 is: 71,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,017.20 : 86,896.20 = 47,649.20 : x
  2. Step 2: Convert to fraction form
    58,017.20/86,896.20 = 47,649.20/x
  3. Step 3: Cross multiply
    58,017.20x = 86,896.20 × 47,649.20
  4. Step 4: Simplify right side
    58,017.20x = 4,140,534,413.04
  5. Step 5: Solve for x
    x = 4,140,534,413.04/58,017.20
  6. Step 6: Final answer
    x = 71,367.36

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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.