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Finding the Fourth Proportional to 38,712.59, 58,078.58 and 11,010.59

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Solution

The fourth proportional to 38,712.59, 58,078.58 and 11,010.59 is: 16,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712.59 : 58,078.58 = 11,010.59 : x
  2. Step 2: Convert to fraction form
    38,712.59/58,078.58 = 11,010.59/x
  3. Step 3: Cross multiply
    38,712.59x = 58,078.58 × 11,010.59
  4. Step 4: Simplify right side
    38,712.59x = 639,479,086.72
  5. Step 5: Solve for x
    x = 639,479,086.72/38,712.59
  6. Step 6: Final answer
    x = 16,518.64

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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.