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Finding the Fourth Proportional to 12,572.37, 18,921.67 and 9,468.45

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Solution

The fourth proportional to 12,572.37, 18,921.67 and 9,468.45 is: 14,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.37 : 18,921.67 = 9,468.45 : x
  2. Step 2: Convert to fraction form
    12,572.37/18,921.67 = 9,468.45/x
  3. Step 3: Cross multiply
    12,572.37x = 18,921.67 × 9,468.45
  4. Step 4: Simplify right side
    12,572.37x = 179,158,862.64
  5. Step 5: Solve for x
    x = 179,158,862.64/12,572.37
  6. Step 6: Final answer
    x = 14,250.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.