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Finding the Fourth Proportional to 7,495.56, 10,343.70 and 4,138.17

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Solution

The fourth proportional to 7,495.56, 10,343.70 and 4,138.17 is: 5,710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,495.56 : 10,343.70 = 4,138.17 : x
  2. Step 2: Convert to fraction form
    7,495.56/10,343.70 = 4,138.17/x
  3. Step 3: Cross multiply
    7,495.56x = 10,343.70 × 4,138.17
  4. Step 4: Simplify right side
    7,495.56x = 42,803,989.03
  5. Step 5: Solve for x
    x = 42,803,989.03/7,495.56
  6. Step 6: Final answer
    x = 5,710.58

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1.5x scale

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.