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Finding the Fourth Proportional to 56,571.90, 84,795.89 and 28,447.08

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Solution

The fourth proportional to 56,571.90, 84,795.89 and 28,447.08 is: 42,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.90 : 84,795.89 = 28,447.08 : x
  2. Step 2: Convert to fraction form
    56,571.90/84,795.89 = 28,447.08/x
  3. Step 3: Cross multiply
    56,571.90x = 84,795.89 × 28,447.08
  4. Step 4: Simplify right side
    56,571.90x = 2,412,195,324.27
  5. Step 5: Solve for x
    x = 2,412,195,324.27/56,571.90
  6. Step 6: Final answer
    x = 42,639.46

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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.