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Finding the Fourth Proportional to 34,179.08, 47,168.34 and 20,031.08

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Solution

The fourth proportional to 34,179.08, 47,168.34 and 20,031.08 is: 27,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,179.08 : 47,168.34 = 20,031.08 : x
  2. Step 2: Convert to fraction form
    34,179.08/47,168.34 = 20,031.08/x
  3. Step 3: Cross multiply
    34,179.08x = 47,168.34 × 20,031.08
  4. Step 4: Simplify right side
    34,179.08x = 944,832,792.01
  5. Step 5: Solve for x
    x = 944,832,792.01/34,179.08
  6. Step 6: Final answer
    x = 27,643.60

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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.