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Finding the Fourth Proportional to 13,201.20, 19,802.44 and 7,353.40

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Solution

The fourth proportional to 13,201.20, 19,802.44 and 7,353.40 is: 11,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.20 : 19,802.44 = 7,353.40 : x
  2. Step 2: Convert to fraction form
    13,201.20/19,802.44 = 7,353.40/x
  3. Step 3: Cross multiply
    13,201.20x = 19,802.44 × 7,353.40
  4. Step 4: Simplify right side
    13,201.20x = 145,615,262.30
  5. Step 5: Solve for x
    x = 145,615,262.30/13,201.20
  6. Step 6: Final answer
    x = 11,030.46

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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.