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Finding the Fourth Proportional to 80,412.70, 110,960.32 and 46,421.05

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Solution

The fourth proportional to 80,412.70, 110,960.32 and 46,421.05 is: 64,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,412.70 : 110,960.32 = 46,421.05 : x
  2. Step 2: Convert to fraction form
    80,412.70/110,960.32 = 46,421.05/x
  3. Step 3: Cross multiply
    80,412.70x = 110,960.32 × 46,421.05
  4. Step 4: Simplify right side
    80,412.70x = 5,150,893,775.83
  5. Step 5: Solve for x
    x = 5,150,893,775.83/80,412.70
  6. Step 6: Final answer
    x = 64,055.73

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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.