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Finding the Fourth Proportional to 27,307.61, 40,963.69 and 7,319.95

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Solution

The fourth proportional to 27,307.61, 40,963.69 and 7,319.95 is: 10,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,307.61 : 40,963.69 = 7,319.95 : x
  2. Step 2: Convert to fraction form
    27,307.61/40,963.69 = 7,319.95/x
  3. Step 3: Cross multiply
    27,307.61x = 40,963.69 × 7,319.95
  4. Step 4: Simplify right side
    27,307.61x = 299,852,162.62
  5. Step 5: Solve for x
    x = 299,852,162.62/27,307.61
  6. Step 6: Final answer
    x = 10,980.53

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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.