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Finding the Fourth Proportional to 79,969.51, 119,950.62 and 26,657.74

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Solution

The fourth proportional to 79,969.51, 119,950.62 and 26,657.74 is: 39,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,969.51 : 119,950.62 = 26,657.74 : x
  2. Step 2: Convert to fraction form
    79,969.51/119,950.62 = 26,657.74/x
  3. Step 3: Cross multiply
    79,969.51x = 119,950.62 × 26,657.74
  4. Step 4: Simplify right side
    79,969.51x = 3,197,612,440.80
  5. Step 5: Solve for x
    x = 3,197,612,440.80/79,969.51
  6. Step 6: Final answer
    x = 39,985.39

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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.