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Finding the Fourth Proportional to 79,463.08, 109,613.20 and 47,613.54

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Solution

The fourth proportional to 79,463.08, 109,613.20 and 47,613.54 is: 65,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,463.08 : 109,613.20 = 47,613.54 : x
  2. Step 2: Convert to fraction form
    79,463.08/109,613.20 = 47,613.54/x
  3. Step 3: Cross multiply
    79,463.08x = 109,613.20 × 47,613.54
  4. Step 4: Simplify right side
    79,463.08x = 5,219,072,482.73
  5. Step 5: Solve for x
    x = 5,219,072,482.73/79,463.08
  6. Step 6: Final answer
    x = 65,679.21

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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.