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Finding the Fourth Proportional to 43,807.91, 65,710.92 and 12,217.13

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Solution

The fourth proportional to 43,807.91, 65,710.92 and 12,217.13 is: 18,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.91 : 65,710.92 = 12,217.13 : x
  2. Step 2: Convert to fraction form
    43,807.91/65,710.92 = 12,217.13/x
  3. Step 3: Cross multiply
    43,807.91x = 65,710.92 × 12,217.13
  4. Step 4: Simplify right side
    43,807.91x = 802,798,852.06
  5. Step 5: Solve for x
    x = 802,798,852.06/43,807.91
  6. Step 6: Final answer
    x = 18,325.43

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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.