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Finding the Fourth Proportional to 9,778.94, 13,494.93 and 5,302.84

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Solution

The fourth proportional to 9,778.94, 13,494.93 and 5,302.84 is: 7,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.94 : 13,494.93 = 5,302.84 : x
  2. Step 2: Convert to fraction form
    9,778.94/13,494.93 = 5,302.84/x
  3. Step 3: Cross multiply
    9,778.94x = 13,494.93 × 5,302.84
  4. Step 4: Simplify right side
    9,778.94x = 71,561,454.60
  5. Step 5: Solve for x
    x = 71,561,454.60/9,778.94
  6. Step 6: Final answer
    x = 7,317.92

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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.