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Finding the Fourth Proportional to 3,272.90, 4,907.67 and 964.10

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Solution

The fourth proportional to 3,272.90, 4,907.67 and 964.10 is: 1,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.90 : 4,907.67 = 964.10 : x
  2. Step 2: Convert to fraction form
    3,272.90/4,907.67 = 964.10/x
  3. Step 3: Cross multiply
    3,272.90x = 4,907.67 × 964.10
  4. Step 4: Simplify right side
    3,272.90x = 4,731,484.65
  5. Step 5: Solve for x
    x = 4,731,484.65/3,272.90
  6. Step 6: Final answer
    x = 1,445.66

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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.