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Finding the Fourth Proportional to 7,774.38, 11,646.99 and 5,695.11

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Solution

The fourth proportional to 7,774.38, 11,646.99 and 5,695.11 is: 8,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.38 : 11,646.99 = 5,695.11 : x
  2. Step 2: Convert to fraction form
    7,774.38/11,646.99 = 5,695.11/x
  3. Step 3: Cross multiply
    7,774.38x = 11,646.99 × 5,695.11
  4. Step 4: Simplify right side
    7,774.38x = 66,330,889.22
  5. Step 5: Solve for x
    x = 66,330,889.22/7,774.38
  6. Step 6: Final answer
    x = 8,531.98

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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.