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Finding the Fourth Proportional to 8,995.65, 13,495.29 and 3,152.71

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Solution

The fourth proportional to 8,995.65, 13,495.29 and 3,152.71 is: 4,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.65 : 13,495.29 = 3,152.71 : x
  2. Step 2: Convert to fraction form
    8,995.65/13,495.29 = 3,152.71/x
  3. Step 3: Cross multiply
    8,995.65x = 13,495.29 × 3,152.71
  4. Step 4: Simplify right side
    8,995.65x = 42,546,735.74
  5. Step 5: Solve for x
    x = 42,546,735.74/8,995.65
  6. Step 6: Final answer
    x = 4,729.70

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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.