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Finding the Fourth Proportional to 49,668.60, 74,502.90 and 47,364.60

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Solution

The fourth proportional to 49,668.60, 74,502.90 and 47,364.60 is: 71,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,668.60 : 74,502.90 = 47,364.60 : x
  2. Step 2: Convert to fraction form
    49,668.60/74,502.90 = 47,364.60/x
  3. Step 3: Cross multiply
    49,668.60x = 74,502.90 × 47,364.60
  4. Step 4: Simplify right side
    49,668.60x = 3,528,800,057.34
  5. Step 5: Solve for x
    x = 3,528,800,057.34/49,668.60
  6. Step 6: Final answer
    x = 71,046.90

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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.