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Finding the Fourth Proportional to 11,653.55, 17,480.16 and 2,888.41

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Solution

The fourth proportional to 11,653.55, 17,480.16 and 2,888.41 is: 4,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,653.55 : 17,480.16 = 2,888.41 : x
  2. Step 2: Convert to fraction form
    11,653.55/17,480.16 = 2,888.41/x
  3. Step 3: Cross multiply
    11,653.55x = 17,480.16 × 2,888.41
  4. Step 4: Simplify right side
    11,653.55x = 50,489,868.95
  5. Step 5: Solve for x
    x = 50,489,868.95/11,653.55
  6. Step 6: Final answer
    x = 4,332.57

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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.