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Finding the Fourth Proportional to 31,299.48, 46,949.22 and 7,924.10

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Solution

The fourth proportional to 31,299.48, 46,949.22 and 7,924.10 is: 11,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,299.48 : 46,949.22 = 7,924.10 : x
  2. Step 2: Convert to fraction form
    31,299.48/46,949.22 = 7,924.10/x
  3. Step 3: Cross multiply
    31,299.48x = 46,949.22 × 7,924.10
  4. Step 4: Simplify right side
    31,299.48x = 372,030,079.46
  5. Step 5: Solve for x
    x = 372,030,079.46/31,299.48
  6. Step 6: Final answer
    x = 11,886.14

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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.