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Finding the Fourth Proportional to 7,533.90, 11,304.90 and 3,151.80

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Solution

The fourth proportional to 7,533.90, 11,304.90 and 3,151.80 is: 4,729.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,533.90 : 11,304.90 = 3,151.80 : x
  2. Step 2: Convert to fraction form
    7,533.90/11,304.90 = 3,151.80/x
  3. Step 3: Cross multiply
    7,533.90x = 11,304.90 × 3,151.80
  4. Step 4: Simplify right side
    7,533.90x = 35,630,783.82
  5. Step 5: Solve for x
    x = 35,630,783.82/7,533.90
  6. Step 6: Final answer
    x = 4,729.39

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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.