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Finding the Fourth Proportional to 35,423.20, 53,141.20 and 17,848.80

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Solution

The fourth proportional to 35,423.20, 53,141.20 and 17,848.80 is: 26,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,423.20 : 53,141.20 = 17,848.80 : x
  2. Step 2: Convert to fraction form
    35,423.20/53,141.20 = 17,848.80/x
  3. Step 3: Cross multiply
    35,423.20x = 53,141.20 × 17,848.80
  4. Step 4: Simplify right side
    35,423.20x = 948,506,650.56
  5. Step 5: Solve for x
    x = 948,506,650.56/35,423.20
  6. Step 6: Final answer
    x = 26,776.42

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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.