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Finding the Fourth Proportional to 79,416.63, 109,586.85 and 47,584.71

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Solution

The fourth proportional to 79,416.63, 109,586.85 and 47,584.71 is: 65,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,416.63 : 109,586.85 = 47,584.71 : x
  2. Step 2: Convert to fraction form
    79,416.63/109,586.85 = 47,584.71/x
  3. Step 3: Cross multiply
    79,416.63x = 109,586.85 × 47,584.71
  4. Step 4: Simplify right side
    79,416.63x = 5,214,658,477.06
  5. Step 5: Solve for x
    x = 5,214,658,477.06/79,416.63
  6. Step 6: Final answer
    x = 65,662.05

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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.