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Finding the Fourth Proportional to 56,552.40, 84,825.90 and 19,108.80

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Solution

The fourth proportional to 56,552.40, 84,825.90 and 19,108.80 is: 28,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,552.40 : 84,825.90 = 19,108.80 : x
  2. Step 2: Convert to fraction form
    56,552.40/84,825.90 = 19,108.80/x
  3. Step 3: Cross multiply
    56,552.40x = 84,825.90 × 19,108.80
  4. Step 4: Simplify right side
    56,552.40x = 1,620,921,157.92
  5. Step 5: Solve for x
    x = 1,620,921,157.92/56,552.40
  6. Step 6: Final answer
    x = 28,662.29

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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.