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Finding the Fourth Proportional to 13,596.15, 18,762.58 and 7,627.82

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Solution

The fourth proportional to 13,596.15, 18,762.58 and 7,627.82 is: 10,526.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.15 : 18,762.58 = 7,627.82 : x
  2. Step 2: Convert to fraction form
    13,596.15/18,762.58 = 7,627.82/x
  3. Step 3: Cross multiply
    13,596.15x = 18,762.58 × 7,627.82
  4. Step 4: Simplify right side
    13,596.15x = 143,117,517.00
  5. Step 5: Solve for x
    x = 143,117,517.00/13,596.15
  6. Step 6: Final answer
    x = 10,526.33

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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.