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Finding the Fourth Proportional to 58,068.77, 87,111.80 and 20,625.69

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Solution

The fourth proportional to 58,068.77, 87,111.80 and 20,625.69 is: 30,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,068.77 : 87,111.80 = 20,625.69 : x
  2. Step 2: Convert to fraction form
    58,068.77/87,111.80 = 20,625.69/x
  3. Step 3: Cross multiply
    58,068.77x = 87,111.80 × 20,625.69
  4. Step 4: Simplify right side
    58,068.77x = 1,796,740,879.01
  5. Step 5: Solve for x
    x = 1,796,740,879.01/58,068.77
  6. Step 6: Final answer
    x = 30,941.61

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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.