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Finding the Fourth Proportional to 11,530.94, 15,912.99 and 6,495.32

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Solution

The fourth proportional to 11,530.94, 15,912.99 and 6,495.32 is: 8,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,530.94 : 15,912.99 = 6,495.32 : x
  2. Step 2: Convert to fraction form
    11,530.94/15,912.99 = 6,495.32/x
  3. Step 3: Cross multiply
    11,530.94x = 15,912.99 × 6,495.32
  4. Step 4: Simplify right side
    11,530.94x = 103,359,962.21
  5. Step 5: Solve for x
    x = 103,359,962.21/11,530.94
  6. Step 6: Final answer
    x = 8,963.71

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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.