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Finding the Fourth Proportional to 7,159.59, 9,880.08 and 4,175.75

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Solution

The fourth proportional to 7,159.59, 9,880.08 and 4,175.75 is: 5,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.59 : 9,880.08 = 4,175.75 : x
  2. Step 2: Convert to fraction form
    7,159.59/9,880.08 = 4,175.75/x
  3. Step 3: Cross multiply
    7,159.59x = 9,880.08 × 4,175.75
  4. Step 4: Simplify right side
    7,159.59x = 41,256,753.10
  5. Step 5: Solve for x
    x = 41,256,753.10/7,159.59
  6. Step 6: Final answer
    x = 5,762.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.