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Finding the Fourth Proportional to 52,698.41, 79,047.74 and 21,533.66

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Solution

The fourth proportional to 52,698.41, 79,047.74 and 21,533.66 is: 32,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,698.41 : 79,047.74 = 21,533.66 : x
  2. Step 2: Convert to fraction form
    52,698.41/79,047.74 = 21,533.66/x
  3. Step 3: Cross multiply
    52,698.41x = 79,047.74 × 21,533.66
  4. Step 4: Simplify right side
    52,698.41x = 1,702,186,815.52
  5. Step 5: Solve for x
    x = 1,702,186,815.52/52,698.41
  6. Step 6: Final answer
    x = 32,300.54

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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.