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Finding the Fourth Proportional to 52,890.92, 79,285.79 and 19,602.05

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Solution

The fourth proportional to 52,890.92, 79,285.79 and 19,602.05 is: 29,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,890.92 : 79,285.79 = 19,602.05 : x
  2. Step 2: Convert to fraction form
    52,890.92/79,285.79 = 19,602.05/x
  3. Step 3: Cross multiply
    52,890.92x = 79,285.79 × 19,602.05
  4. Step 4: Simplify right side
    52,890.92x = 1,554,164,008.17
  5. Step 5: Solve for x
    x = 1,554,164,008.17/52,890.92
  6. Step 6: Final answer
    x = 29,384.32

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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.