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Finding the Fourth Proportional to 28,797.71, 39,736.02 and 16,048.10

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Solution

The fourth proportional to 28,797.71, 39,736.02 and 16,048.10 is: 22,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797.71 : 39,736.02 = 16,048.10 : x
  2. Step 2: Convert to fraction form
    28,797.71/39,736.02 = 16,048.10/x
  3. Step 3: Cross multiply
    28,797.71x = 39,736.02 × 16,048.10
  4. Step 4: Simplify right side
    28,797.71x = 637,687,423.88
  5. Step 5: Solve for x
    x = 637,687,423.88/28,797.71
  6. Step 6: Final answer
    x = 22,143.69

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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.