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Finding the Fourth Proportional to 40,666.44, 61,020.54 and 30,802.44

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Solution

The fourth proportional to 40,666.44, 61,020.54 and 30,802.44 is: 46,219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,666.44 : 61,020.54 = 30,802.44 : x
  2. Step 2: Convert to fraction form
    40,666.44/61,020.54 = 30,802.44/x
  3. Step 3: Cross multiply
    40,666.44x = 61,020.54 × 30,802.44
  4. Step 4: Simplify right side
    40,666.44x = 1,879,581,522.12
  5. Step 5: Solve for x
    x = 1,879,581,522.12/40,666.44
  6. Step 6: Final answer
    x = 46,219.48

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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.