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Finding the Fourth Proportional to 5,643.74, 8,465.60 and 1,748.06

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Solution

The fourth proportional to 5,643.74, 8,465.60 and 1,748.06 is: 2,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.74 : 8,465.60 = 1,748.06 : x
  2. Step 2: Convert to fraction form
    5,643.74/8,465.60 = 1,748.06/x
  3. Step 3: Cross multiply
    5,643.74x = 8,465.60 × 1,748.06
  4. Step 4: Simplify right side
    5,643.74x = 14,798,376.74
  5. Step 5: Solve for x
    x = 14,798,376.74/5,643.74
  6. Step 6: Final answer
    x = 2,622.09

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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.