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Finding the Fourth Proportional to 35,580.60, 53,380.14 and 10,620.65

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Solution

The fourth proportional to 35,580.60, 53,380.14 and 10,620.65 is: 15,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,580.60 : 53,380.14 = 10,620.65 : x
  2. Step 2: Convert to fraction form
    35,580.60/53,380.14 = 10,620.65/x
  3. Step 3: Cross multiply
    35,580.60x = 53,380.14 × 10,620.65
  4. Step 4: Simplify right side
    35,580.60x = 566,931,783.89
  5. Step 5: Solve for x
    x = 566,931,783.89/35,580.60
  6. Step 6: Final answer
    x = 15,933.73

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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.