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Finding the Fourth Proportional to 79,015.58, 118,498.70 and 26,412.76

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Solution

The fourth proportional to 79,015.58, 118,498.70 and 26,412.76 is: 39,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,015.58 : 118,498.70 = 26,412.76 : x
  2. Step 2: Convert to fraction form
    79,015.58/118,498.70 = 26,412.76/x
  3. Step 3: Cross multiply
    79,015.58x = 118,498.70 × 26,412.76
  4. Step 4: Simplify right side
    79,015.58x = 3,129,877,723.41
  5. Step 5: Solve for x
    x = 3,129,877,723.41/79,015.58
  6. Step 6: Final answer
    x = 39,610.89

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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.