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Finding the Fourth Proportional to 9,358.65, 12,904.45 and 6,376.23

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Solution

The fourth proportional to 9,358.65, 12,904.45 and 6,376.23 is: 8,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.65 : 12,904.45 = 6,376.23 : x
  2. Step 2: Convert to fraction form
    9,358.65/12,904.45 = 6,376.23/x
  3. Step 3: Cross multiply
    9,358.65x = 12,904.45 × 6,376.23
  4. Step 4: Simplify right side
    9,358.65x = 82,281,725.28
  5. Step 5: Solve for x
    x = 82,281,725.28/9,358.65
  6. Step 6: Final answer
    x = 8,792.05

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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.