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Finding the Fourth Proportional to 9,364.34, 12,907.86 and 7,371.74

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Solution

The fourth proportional to 9,364.34, 12,907.86 and 7,371.74 is: 10,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.34 : 12,907.86 = 7,371.74 : x
  2. Step 2: Convert to fraction form
    9,364.34/12,907.86 = 7,371.74/x
  3. Step 3: Cross multiply
    9,364.34x = 12,907.86 × 7,371.74
  4. Step 4: Simplify right side
    9,364.34x = 95,153,387.88
  5. Step 5: Solve for x
    x = 95,153,387.88/9,364.34
  6. Step 6: Final answer
    x = 10,161.25

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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.