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Finding the Fourth Proportional to 47,695.52, 71,569.20 and 20,012.96

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Solution

The fourth proportional to 47,695.52, 71,569.20 and 20,012.96 is: 30,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,695.52 : 71,569.20 = 20,012.96 : x
  2. Step 2: Convert to fraction form
    47,695.52/71,569.20 = 20,012.96/x
  3. Step 3: Cross multiply
    47,695.52x = 71,569.20 × 20,012.96
  4. Step 4: Simplify right side
    47,695.52x = 1,432,311,536.83
  5. Step 5: Solve for x
    x = 1,432,311,536.83/47,695.52
  6. Step 6: Final answer
    x = 30,030.32

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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.