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Finding the Fourth Proportional to 3,592, 5,387.99 and 1,127.01

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Solution

The fourth proportional to 3,592, 5,387.99 and 1,127.01 is: 1,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592 : 5,387.99 = 1,127.01 : x
  2. Step 2: Convert to fraction form
    3,592/5,387.99 = 1,127.01/x
  3. Step 3: Cross multiply
    3,592x = 5,387.99 × 1,127.01
  4. Step 4: Simplify right side
    3,592x = 6,072,291.67
  5. Step 5: Solve for x
    x = 6,072,291.67/3,592
  6. Step 6: Final answer
    x = 1,690.50

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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.