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Finding the Fourth Proportional to 15,307.14, 22,959.90 and 4,918.08

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Solution

The fourth proportional to 15,307.14, 22,959.90 and 4,918.08 is: 7,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.14 : 22,959.90 = 4,918.08 : x
  2. Step 2: Convert to fraction form
    15,307.14/22,959.90 = 4,918.08/x
  3. Step 3: Cross multiply
    15,307.14x = 22,959.90 × 4,918.08
  4. Step 4: Simplify right side
    15,307.14x = 112,918,624.99
  5. Step 5: Solve for x
    x = 112,918,624.99/15,307.14
  6. Step 6: Final answer
    x = 7,376.86

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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.