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Finding the Fourth Proportional to 11,602.65, 17,427.21 and 6,931.80

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Solution

The fourth proportional to 11,602.65, 17,427.21 and 6,931.80 is: 10,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,602.65 : 17,427.21 = 6,931.80 : x
  2. Step 2: Convert to fraction form
    11,602.65/17,427.21 = 6,931.80/x
  3. Step 3: Cross multiply
    11,602.65x = 17,427.21 × 6,931.80
  4. Step 4: Simplify right side
    11,602.65x = 120,801,934.28
  5. Step 5: Solve for x
    x = 120,801,934.28/11,602.65
  6. Step 6: Final answer
    x = 10,411.58

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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.