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Finding the Fourth Proportional to 7,495.88, 10,345.56 and 7,163.72

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Solution

The fourth proportional to 7,495.88, 10,345.56 and 7,163.72 is: 9,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,495.88 : 10,345.56 = 7,163.72 : x
  2. Step 2: Convert to fraction form
    7,495.88/10,345.56 = 7,163.72/x
  3. Step 3: Cross multiply
    7,495.88x = 10,345.56 × 7,163.72
  4. Step 4: Simplify right side
    7,495.88x = 74,112,695.08
  5. Step 5: Solve for x
    x = 74,112,695.08/7,495.88
  6. Step 6: Final answer
    x = 9,887.12

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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.