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Finding the Fourth Proportional to 58,181.63, 80,290.64 and 31,685.63

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Solution

The fourth proportional to 58,181.63, 80,290.64 and 31,685.63 is: 43,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,181.63 : 80,290.64 = 31,685.63 : x
  2. Step 2: Convert to fraction form
    58,181.63/80,290.64 = 31,685.63/x
  3. Step 3: Cross multiply
    58,181.63x = 80,290.64 × 31,685.63
  4. Step 4: Simplify right side
    58,181.63x = 2,544,059,189.26
  5. Step 5: Solve for x
    x = 2,544,059,189.26/58,181.63
  6. Step 6: Final answer
    x = 43,726.16

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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.