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Finding the Fourth Proportional to 8,725.65, 13,074.51 and 8,495.01

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Solution

The fourth proportional to 8,725.65, 13,074.51 and 8,495.01 is: 12,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.65 : 13,074.51 = 8,495.01 : x
  2. Step 2: Convert to fraction form
    8,725.65/13,074.51 = 8,495.01/x
  3. Step 3: Cross multiply
    8,725.65x = 13,074.51 × 8,495.01
  4. Step 4: Simplify right side
    8,725.65x = 111,068,093.20
  5. Step 5: Solve for x
    x = 111,068,093.20/8,725.65
  6. Step 6: Final answer
    x = 12,728.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.