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Finding the Fourth Proportional to 7,345.51, 10,156.75 and 7,226.82

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Solution

The fourth proportional to 7,345.51, 10,156.75 and 7,226.82 is: 9,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.51 : 10,156.75 = 7,226.82 : x
  2. Step 2: Convert to fraction form
    7,345.51/10,156.75 = 7,226.82/x
  3. Step 3: Cross multiply
    7,345.51x = 10,156.75 × 7,226.82
  4. Step 4: Simplify right side
    7,345.51x = 73,400,985.97
  5. Step 5: Solve for x
    x = 73,400,985.97/7,345.51
  6. Step 6: Final answer
    x = 9,992.64

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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.