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Finding the Fourth Proportional to 72,453.96, 100,043.10 and 46,972.44

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Solution

The fourth proportional to 72,453.96, 100,043.10 and 46,972.44 is: 64,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.96 : 100,043.10 = 46,972.44 : x
  2. Step 2: Convert to fraction form
    72,453.96/100,043.10 = 46,972.44/x
  3. Step 3: Cross multiply
    72,453.96x = 100,043.10 × 46,972.44
  4. Step 4: Simplify right side
    72,453.96x = 4,699,268,512.16
  5. Step 5: Solve for x
    x = 4,699,268,512.16/72,453.96
  6. Step 6: Final answer
    x = 64,858.68

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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.