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Finding the Fourth Proportional to 8,909.94, 12,296.63 and 5,133.25

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Solution

The fourth proportional to 8,909.94, 12,296.63 and 5,133.25 is: 7,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.94 : 12,296.63 = 5,133.25 : x
  2. Step 2: Convert to fraction form
    8,909.94/12,296.63 = 5,133.25/x
  3. Step 3: Cross multiply
    8,909.94x = 12,296.63 × 5,133.25
  4. Step 4: Simplify right side
    8,909.94x = 63,121,658.04
  5. Step 5: Solve for x
    x = 63,121,658.04/8,909.94
  6. Step 6: Final answer
    x = 7,084.41

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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.