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Finding the Fourth Proportional to 51,205.80, 76,808.70 and 46,613.10

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Solution

The fourth proportional to 51,205.80, 76,808.70 and 46,613.10 is: 69,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,205.80 : 76,808.70 = 46,613.10 : x
  2. Step 2: Convert to fraction form
    51,205.80/76,808.70 = 46,613.10/x
  3. Step 3: Cross multiply
    51,205.80x = 76,808.70 × 46,613.10
  4. Step 4: Simplify right side
    51,205.80x = 3,580,291,613.97
  5. Step 5: Solve for x
    x = 3,580,291,613.97/51,205.80
  6. Step 6: Final answer
    x = 69,919.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.