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Finding the Fourth Proportional to 52,698.66, 79,048.12 and 21,533.91

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Solution

The fourth proportional to 52,698.66, 79,048.12 and 21,533.91 is: 32,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,698.66 : 79,048.12 = 21,533.91 : x
  2. Step 2: Convert to fraction form
    52,698.66/79,048.12 = 21,533.91/x
  3. Step 3: Cross multiply
    52,698.66x = 79,048.12 × 21,533.91
  4. Step 4: Simplify right side
    52,698.66x = 1,702,214,706.51
  5. Step 5: Solve for x
    x = 1,702,214,706.51/52,698.66
  6. Step 6: Final answer
    x = 32,300.91

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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.