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Finding the Fourth Proportional to 30,642.62, 45,921.09 and 16,572.26

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Solution

The fourth proportional to 30,642.62, 45,921.09 and 16,572.26 is: 24,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.62 : 45,921.09 = 16,572.26 : x
  2. Step 2: Convert to fraction form
    30,642.62/45,921.09 = 16,572.26/x
  3. Step 3: Cross multiply
    30,642.62x = 45,921.09 × 16,572.26
  4. Step 4: Simplify right side
    30,642.62x = 761,016,242.96
  5. Step 5: Solve for x
    x = 761,016,242.96/30,642.62
  6. Step 6: Final answer
    x = 24,835.22

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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.