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Finding the Fourth Proportional to 58,486.86, 80,718.12 and 35,840.88

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Solution

The fourth proportional to 58,486.86, 80,718.12 and 35,840.88 is: 49,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.86 : 80,718.12 = 35,840.88 : x
  2. Step 2: Convert to fraction form
    58,486.86/80,718.12 = 35,840.88/x
  3. Step 3: Cross multiply
    58,486.86x = 80,718.12 × 35,840.88
  4. Step 4: Simplify right side
    58,486.86x = 2,893,008,452.75
  5. Step 5: Solve for x
    x = 2,893,008,452.75/58,486.86
  6. Step 6: Final answer
    x = 49,464.25

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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.