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Finding the Fourth Proportional to 35,662.70, 53,479.65 and 12,277.10

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Solution

The fourth proportional to 35,662.70, 53,479.65 and 12,277.10 is: 18,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,662.70 : 53,479.65 = 12,277.10 : x
  2. Step 2: Convert to fraction form
    35,662.70/53,479.65 = 12,277.10/x
  3. Step 3: Cross multiply
    35,662.70x = 53,479.65 × 12,277.10
  4. Step 4: Simplify right side
    35,662.70x = 656,575,011.02
  5. Step 5: Solve for x
    x = 656,575,011.02/35,662.70
  6. Step 6: Final answer
    x = 18,410.69

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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.