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Finding the Fourth Proportional to 69,786.84, 96,303.78 and 39,574.92

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Solution

The fourth proportional to 69,786.84, 96,303.78 and 39,574.92 is: 54,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,786.84 : 96,303.78 = 39,574.92 : x
  2. Step 2: Convert to fraction form
    69,786.84/96,303.78 = 39,574.92/x
  3. Step 3: Cross multiply
    69,786.84x = 96,303.78 × 39,574.92
  4. Step 4: Simplify right side
    69,786.84x = 3,811,214,389.20
  5. Step 5: Solve for x
    x = 3,811,214,389.20/69,786.84
  6. Step 6: Final answer
    x = 54,612.22

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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.