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Finding the Fourth Proportional to 58,625.68, 80,903.19 and 31,768.30

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Solution

The fourth proportional to 58,625.68, 80,903.19 and 31,768.30 is: 43,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,625.68 : 80,903.19 = 31,768.30 : x
  2. Step 2: Convert to fraction form
    58,625.68/80,903.19 = 31,768.30/x
  3. Step 3: Cross multiply
    58,625.68x = 80,903.19 × 31,768.30
  4. Step 4: Simplify right side
    58,625.68x = 2,570,156,810.88
  5. Step 5: Solve for x
    x = 2,570,156,810.88/58,625.68
  6. Step 6: Final answer
    x = 43,840.12

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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.