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Finding the Fourth Proportional to 70,790.39, 106,152.87 and 26,405.27

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Solution

The fourth proportional to 70,790.39, 106,152.87 and 26,405.27 is: 39,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.39 : 106,152.87 = 26,405.27 : x
  2. Step 2: Convert to fraction form
    70,790.39/106,152.87 = 26,405.27/x
  3. Step 3: Cross multiply
    70,790.39x = 106,152.87 × 26,405.27
  4. Step 4: Simplify right side
    70,790.39x = 2,802,995,193.62
  5. Step 5: Solve for x
    x = 2,802,995,193.62/70,790.39
  6. Step 6: Final answer
    x = 39,595.70

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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.