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Finding the Fourth Proportional to 30,521.43, 45,789.28 and 9,460.37

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Solution

The fourth proportional to 30,521.43, 45,789.28 and 9,460.37 is: 14,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.43 : 45,789.28 = 9,460.37 : x
  2. Step 2: Convert to fraction form
    30,521.43/45,789.28 = 9,460.37/x
  3. Step 3: Cross multiply
    30,521.43x = 45,789.28 × 9,460.37
  4. Step 4: Simplify right side
    30,521.43x = 433,183,621.66
  5. Step 5: Solve for x
    x = 433,183,621.66/30,521.43
  6. Step 6: Final answer
    x = 14,192.77

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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.