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Finding the Fourth Proportional to 8,313.17, 12,415.01 and 7,394.63

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Solution

The fourth proportional to 8,313.17, 12,415.01 and 7,394.63 is: 11,043.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.17 : 12,415.01 = 7,394.63 : x
  2. Step 2: Convert to fraction form
    8,313.17/12,415.01 = 7,394.63/x
  3. Step 3: Cross multiply
    8,313.17x = 12,415.01 × 7,394.63
  4. Step 4: Simplify right side
    8,313.17x = 91,804,306.35
  5. Step 5: Solve for x
    x = 91,804,306.35/8,313.17
  6. Step 6: Final answer
    x = 11,043.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.