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Finding the Fourth Proportional to 21,695.91, 32,543.25 and 6,905.71

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Solution

The fourth proportional to 21,695.91, 32,543.25 and 6,905.71 is: 10,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.91 : 32,543.25 = 6,905.71 : x
  2. Step 2: Convert to fraction form
    21,695.91/32,543.25 = 6,905.71/x
  3. Step 3: Cross multiply
    21,695.91x = 32,543.25 × 6,905.71
  4. Step 4: Simplify right side
    21,695.91x = 224,734,246.96
  5. Step 5: Solve for x
    x = 224,734,246.96/21,695.91
  6. Step 6: Final answer
    x = 10,358.37

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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.