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Finding the Fourth Proportional to 35,964.40, 53,903.40 and 18,425.20

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Solution

The fourth proportional to 35,964.40, 53,903.40 and 18,425.20 is: 27,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,964.40 : 53,903.40 = 18,425.20 : x
  2. Step 2: Convert to fraction form
    35,964.40/53,903.40 = 18,425.20/x
  3. Step 3: Cross multiply
    35,964.40x = 53,903.40 × 18,425.20
  4. Step 4: Simplify right side
    35,964.40x = 993,180,925.68
  5. Step 5: Solve for x
    x = 993,180,925.68/35,964.40
  6. Step 6: Final answer
    x = 27,615.67

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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.