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Finding the Fourth Proportional to 9,300.87, 12,838.23 and 6,325.74

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Solution

The fourth proportional to 9,300.87, 12,838.23 and 6,325.74 is: 8,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,300.87 : 12,838.23 = 6,325.74 : x
  2. Step 2: Convert to fraction form
    9,300.87/12,838.23 = 6,325.74/x
  3. Step 3: Cross multiply
    9,300.87x = 12,838.23 × 6,325.74
  4. Step 4: Simplify right side
    9,300.87x = 81,211,305.04
  5. Step 5: Solve for x
    x = 81,211,305.04/9,300.87
  6. Step 6: Final answer
    x = 8,731.58

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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.