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Finding the Fourth Proportional to 18,445.80, 27,668.70 and 4,594.80

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Solution

The fourth proportional to 18,445.80, 27,668.70 and 4,594.80 is: 6,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.80 : 27,668.70 = 4,594.80 : x
  2. Step 2: Convert to fraction form
    18,445.80/27,668.70 = 4,594.80/x
  3. Step 3: Cross multiply
    18,445.80x = 27,668.70 × 4,594.80
  4. Step 4: Simplify right side
    18,445.80x = 127,132,142.76
  5. Step 5: Solve for x
    x = 127,132,142.76/18,445.80
  6. Step 6: Final answer
    x = 6,892.20

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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.