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Finding the Fourth Proportional to 8,700.93, 12,007.22 and 4,721.95

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Solution

The fourth proportional to 8,700.93, 12,007.22 and 4,721.95 is: 6,516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.93 : 12,007.22 = 4,721.95 : x
  2. Step 2: Convert to fraction form
    8,700.93/12,007.22 = 4,721.95/x
  3. Step 3: Cross multiply
    8,700.93x = 12,007.22 × 4,721.95
  4. Step 4: Simplify right side
    8,700.93x = 56,697,544.21
  5. Step 5: Solve for x
    x = 56,697,544.21/8,700.93
  6. Step 6: Final answer
    x = 6,516.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.