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Finding the Fourth Proportional to 10,636.66, 15,955.14 and 4,063.20

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Solution

The fourth proportional to 10,636.66, 15,955.14 and 4,063.20 is: 6,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.66 : 15,955.14 = 4,063.20 : x
  2. Step 2: Convert to fraction form
    10,636.66/15,955.14 = 4,063.20/x
  3. Step 3: Cross multiply
    10,636.66x = 15,955.14 × 4,063.20
  4. Step 4: Simplify right side
    10,636.66x = 64,828,924.85
  5. Step 5: Solve for x
    x = 64,828,924.85/10,636.66
  6. Step 6: Final answer
    x = 6,094.86

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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.