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Finding the Fourth Proportional to 74,630.01, 102,814.20 and 51,930.01

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Solution

The fourth proportional to 74,630.01, 102,814.20 and 51,930.01 is: 71,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,630.01 : 102,814.20 = 51,930.01 : x
  2. Step 2: Convert to fraction form
    74,630.01/102,814.20 = 51,930.01/x
  3. Step 3: Cross multiply
    74,630.01x = 102,814.20 × 51,930.01
  4. Step 4: Simplify right side
    74,630.01x = 5,339,142,434.14
  5. Step 5: Solve for x
    x = 5,339,142,434.14/74,630.01
  6. Step 6: Final answer
    x = 71,541.49

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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.