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Finding the Fourth Proportional to 11,646.40, 17,469.40 and 2,881.32

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Solution

The fourth proportional to 11,646.40, 17,469.40 and 2,881.32 is: 4,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,646.40 : 17,469.40 = 2,881.32 : x
  2. Step 2: Convert to fraction form
    11,646.40/17,469.40 = 2,881.32/x
  3. Step 3: Cross multiply
    11,646.40x = 17,469.40 × 2,881.32
  4. Step 4: Simplify right side
    11,646.40x = 50,334,931.61
  5. Step 5: Solve for x
    x = 50,334,931.61/11,646.40
  6. Step 6: Final answer
    x = 4,321.93

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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.