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Finding the Fourth Proportional to 51,798.49, 71,420.78 and 35,453.59

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Solution

The fourth proportional to 51,798.49, 71,420.78 and 35,453.59 is: 48,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,798.49 : 71,420.78 = 35,453.59 : x
  2. Step 2: Convert to fraction form
    51,798.49/71,420.78 = 35,453.59/x
  3. Step 3: Cross multiply
    51,798.49x = 71,420.78 × 35,453.59
  4. Step 4: Simplify right side
    51,798.49x = 2,532,123,051.60
  5. Step 5: Solve for x
    x = 2,532,123,051.60/51,798.49
  6. Step 6: Final answer
    x = 48,884.11

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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.