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Finding the Fourth Proportional to 73,021.76, 100,785.64 and 46,147.12

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Solution

The fourth proportional to 73,021.76, 100,785.64 and 46,147.12 is: 63,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021.76 : 100,785.64 = 46,147.12 : x
  2. Step 2: Convert to fraction form
    73,021.76/100,785.64 = 46,147.12/x
  3. Step 3: Cross multiply
    73,021.76x = 100,785.64 × 46,147.12
  4. Step 4: Simplify right side
    73,021.76x = 4,650,967,023.36
  5. Step 5: Solve for x
    x = 4,650,967,023.36/73,021.76
  6. Step 6: Final answer
    x = 63,692.89

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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.