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Finding the Fourth Proportional to 52,807.90, 79,216 and 15,368.48

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Solution

The fourth proportional to 52,807.90, 79,216 and 15,368.48 is: 23,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,807.90 : 79,216 = 15,368.48 : x
  2. Step 2: Convert to fraction form
    52,807.90/79,216 = 15,368.48/x
  3. Step 3: Cross multiply
    52,807.90x = 79,216 × 15,368.48
  4. Step 4: Simplify right side
    52,807.90x = 1,217,429,511.68
  5. Step 5: Solve for x
    x = 1,217,429,511.68/52,807.90
  6. Step 6: Final answer
    x = 23,053.93

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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.