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Finding the Fourth Proportional to 59,705.77, 89,559.15 and 21,782.20

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Solution

The fourth proportional to 59,705.77, 89,559.15 and 21,782.20 is: 32,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,705.77 : 89,559.15 = 21,782.20 : x
  2. Step 2: Convert to fraction form
    59,705.77/89,559.15 = 21,782.20/x
  3. Step 3: Cross multiply
    59,705.77x = 89,559.15 × 21,782.20
  4. Step 4: Simplify right side
    59,705.77x = 1,950,795,317.13
  5. Step 5: Solve for x
    x = 1,950,795,317.13/59,705.77
  6. Step 6: Final answer
    x = 32,673.48

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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.