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Finding the Fourth Proportional to 7,307.40, 10,080.02 and 4,163

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Solution

The fourth proportional to 7,307.40, 10,080.02 and 4,163 is: 5,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,307.40 : 10,080.02 = 4,163 : x
  2. Step 2: Convert to fraction form
    7,307.40/10,080.02 = 4,163/x
  3. Step 3: Cross multiply
    7,307.40x = 10,080.02 × 4,163
  4. Step 4: Simplify right side
    7,307.40x = 41,963,123.26
  5. Step 5: Solve for x
    x = 41,963,123.26/7,307.40
  6. Step 6: Final answer
    x = 5,742.55

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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.