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Finding the Fourth Proportional to 11,068.58, 16,605.30 and 5,222

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Solution

The fourth proportional to 11,068.58, 16,605.30 and 5,222 is: 7,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.58 : 16,605.30 = 5,222 : x
  2. Step 2: Convert to fraction form
    11,068.58/16,605.30 = 5,222/x
  3. Step 3: Cross multiply
    11,068.58x = 16,605.30 × 5,222
  4. Step 4: Simplify right side
    11,068.58x = 86,712,876.60
  5. Step 5: Solve for x
    x = 86,712,876.60/11,068.58
  6. Step 6: Final answer
    x = 7,834.15

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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.