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Finding the Fourth Proportional to 34,168.65, 47,150.40 and 19,828.90

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Solution

The fourth proportional to 34,168.65, 47,150.40 and 19,828.90 is: 27,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,168.65 : 47,150.40 = 19,828.90 : x
  2. Step 2: Convert to fraction form
    34,168.65/47,150.40 = 19,828.90/x
  3. Step 3: Cross multiply
    34,168.65x = 47,150.40 × 19,828.90
  4. Step 4: Simplify right side
    34,168.65x = 934,940,566.56
  5. Step 5: Solve for x
    x = 934,940,566.56/34,168.65
  6. Step 6: Final answer
    x = 27,362.53

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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.