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Finding the Fourth Proportional to 42,668.56, 63,946.14 and 22,673.80

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Solution

The fourth proportional to 42,668.56, 63,946.14 and 22,673.80 is: 33,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,668.56 : 63,946.14 = 22,673.80 : x
  2. Step 2: Convert to fraction form
    42,668.56/63,946.14 = 22,673.80/x
  3. Step 3: Cross multiply
    42,668.56x = 63,946.14 × 22,673.80
  4. Step 4: Simplify right side
    42,668.56x = 1,449,901,989.13
  5. Step 5: Solve for x
    x = 1,449,901,989.13/42,668.56
  6. Step 6: Final answer
    x = 33,980.57

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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.