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Finding the Fourth Proportional to 72,249.63, 99,670.80 and 46,764.19

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Solution

The fourth proportional to 72,249.63, 99,670.80 and 46,764.19 is: 64,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,249.63 : 99,670.80 = 46,764.19 : x
  2. Step 2: Convert to fraction form
    72,249.63/99,670.80 = 46,764.19/x
  3. Step 3: Cross multiply
    72,249.63x = 99,670.80 × 46,764.19
  4. Step 4: Simplify right side
    72,249.63x = 4,661,024,228.65
  5. Step 5: Solve for x
    x = 4,661,024,228.65/72,249.63
  6. Step 6: Final answer
    x = 64,512.78

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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.