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Finding the Fourth Proportional to 63,670.60, 89,022.20 and 63,670.60

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Solution

The fourth proportional to 63,670.60, 89,022.20 and 63,670.60 is: 89,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,670.60 : 89,022.20 = 63,670.60 : x
  2. Step 2: Convert to fraction form
    63,670.60/89,022.20 = 63,670.60/x
  3. Step 3: Cross multiply
    63,670.60x = 89,022.20 × 63,670.60
  4. Step 4: Simplify right side
    63,670.60x = 5,668,096,887.32
  5. Step 5: Solve for x
    x = 5,668,096,887.32/63,670.60
  6. Step 6: Final answer
    x = 89,022.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.