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Finding the Fourth Proportional to 5,636.08, 7,777.80 and 3,152.08

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Solution

The fourth proportional to 5,636.08, 7,777.80 and 3,152.08 is: 4,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.08 : 7,777.80 = 3,152.08 : x
  2. Step 2: Convert to fraction form
    5,636.08/7,777.80 = 3,152.08/x
  3. Step 3: Cross multiply
    5,636.08x = 7,777.80 × 3,152.08
  4. Step 4: Simplify right side
    5,636.08x = 24,516,247.82
  5. Step 5: Solve for x
    x = 24,516,247.82/5,636.08
  6. Step 6: Final answer
    x = 4,349.88

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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.