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Finding the Fourth Proportional to 7,636.71, 11,454.45 and 5,425.08

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Solution

The fourth proportional to 7,636.71, 11,454.45 and 5,425.08 is: 8,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.71 : 11,454.45 = 5,425.08 : x
  2. Step 2: Convert to fraction form
    7,636.71/11,454.45 = 5,425.08/x
  3. Step 3: Cross multiply
    7,636.71x = 11,454.45 × 5,425.08
  4. Step 4: Simplify right side
    7,636.71x = 62,141,307.61
  5. Step 5: Solve for x
    x = 62,141,307.61/7,636.71
  6. Step 6: Final answer
    x = 8,137.18

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1.5x scale

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.