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Finding the Fourth Proportional to 51,479.52, 77,210.08 and 15,448.64

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Solution

The fourth proportional to 51,479.52, 77,210.08 and 15,448.64 is: 23,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,479.52 : 77,210.08 = 15,448.64 : x
  2. Step 2: Convert to fraction form
    51,479.52/77,210.08 = 15,448.64/x
  3. Step 3: Cross multiply
    51,479.52x = 77,210.08 × 15,448.64
  4. Step 4: Simplify right side
    51,479.52x = 1,192,790,730.29
  5. Step 5: Solve for x
    x = 1,192,790,730.29/51,479.52
  6. Step 6: Final answer
    x = 23,170.20

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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.