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Finding the Fourth Proportional to 13,201.76, 19,804.86 and 4,881.80

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Solution

The fourth proportional to 13,201.76, 19,804.86 and 4,881.80 is: 7,323.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.76 : 19,804.86 = 4,881.80 : x
  2. Step 2: Convert to fraction form
    13,201.76/19,804.86 = 4,881.80/x
  3. Step 3: Cross multiply
    13,201.76x = 19,804.86 × 4,881.80
  4. Step 4: Simplify right side
    13,201.76x = 96,683,365.55
  5. Step 5: Solve for x
    x = 96,683,365.55/13,201.76
  6. Step 6: Final answer
    x = 7,323.52

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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.