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Finding the Fourth Proportional to 58,776.60, 81,110.99 and 31,919.30

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Solution

The fourth proportional to 58,776.60, 81,110.99 and 31,919.30 is: 44,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,776.60 : 81,110.99 = 31,919.30 : x
  2. Step 2: Convert to fraction form
    58,776.60/81,110.99 = 31,919.30/x
  3. Step 3: Cross multiply
    58,776.60x = 81,110.99 × 31,919.30
  4. Step 4: Simplify right side
    58,776.60x = 2,589,005,457.96
  5. Step 5: Solve for x
    x = 2,589,005,457.96/58,776.60
  6. Step 6: Final answer
    x = 44,048.23

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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.