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Finding the Fourth Proportional to 7,929.91, 11,891.13 and 4,599.10

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Solution

The fourth proportional to 7,929.91, 11,891.13 and 4,599.10 is: 6,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.91 : 11,891.13 = 4,599.10 : x
  2. Step 2: Convert to fraction form
    7,929.91/11,891.13 = 4,599.10/x
  3. Step 3: Cross multiply
    7,929.91x = 11,891.13 × 4,599.10
  4. Step 4: Simplify right side
    7,929.91x = 54,688,495.98
  5. Step 5: Solve for x
    x = 54,688,495.98/7,929.91
  6. Step 6: Final answer
    x = 6,896.49

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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.