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Finding the Fourth Proportional to 51,490.45, 71,053.01 and 28,824.22

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Solution

The fourth proportional to 51,490.45, 71,053.01 and 28,824.22 is: 39,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.45 : 71,053.01 = 28,824.22 : x
  2. Step 2: Convert to fraction form
    51,490.45/71,053.01 = 28,824.22/x
  3. Step 3: Cross multiply
    51,490.45x = 71,053.01 × 28,824.22
  4. Step 4: Simplify right side
    51,490.45x = 2,048,047,236.64
  5. Step 5: Solve for x
    x = 2,048,047,236.64/51,490.45
  6. Step 6: Final answer
    x = 39,775.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.