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Finding the Fourth Proportional to 46,685.91, 70,028.46 and 21,711.99

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Solution

The fourth proportional to 46,685.91, 70,028.46 and 21,711.99 is: 32,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,685.91 : 70,028.46 = 21,711.99 : x
  2. Step 2: Convert to fraction form
    46,685.91/70,028.46 = 21,711.99/x
  3. Step 3: Cross multiply
    46,685.91x = 70,028.46 × 21,711.99
  4. Step 4: Simplify right side
    46,685.91x = 1,520,457,223.24
  5. Step 5: Solve for x
    x = 1,520,457,223.24/46,685.91
  6. Step 6: Final answer
    x = 32,567.80

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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.