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Finding the Fourth Proportional to 22,693.16, 34,039.76 and 7,112

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Solution

The fourth proportional to 22,693.16, 34,039.76 and 7,112 is: 10,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.16 : 34,039.76 = 7,112 : x
  2. Step 2: Convert to fraction form
    22,693.16/34,039.76 = 7,112/x
  3. Step 3: Cross multiply
    22,693.16x = 34,039.76 × 7,112
  4. Step 4: Simplify right side
    22,693.16x = 242,090,773.12
  5. Step 5: Solve for x
    x = 242,090,773.12/22,693.16
  6. Step 6: Final answer
    x = 10,668.01

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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.