Home / 47,128.20-70,640.46-19,411.08

Finding the Fourth Proportional to 47,128.20, 70,640.46 and 19,411.08

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Solution

The fourth proportional to 47,128.20, 70,640.46 and 19,411.08 is: 29,095.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.20 : 70,640.46 = 19,411.08 : x
  2. Step 2: Convert to fraction form
    47,128.20/70,640.46 = 19,411.08/x
  3. Step 3: Cross multiply
    47,128.20x = 70,640.46 × 19,411.08
  4. Step 4: Simplify right side
    47,128.20x = 1,371,207,620.30
  5. Step 5: Solve for x
    x = 1,371,207,620.30/47,128.20
  6. Step 6: Final answer
    x = 29,095.27

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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.