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Finding the Fourth Proportional to 7,681.59, 11,525.82 and 3,730.68

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Solution

The fourth proportional to 7,681.59, 11,525.82 and 3,730.68 is: 5,597.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.59 : 11,525.82 = 3,730.68 : x
  2. Step 2: Convert to fraction form
    7,681.59/11,525.82 = 3,730.68/x
  3. Step 3: Cross multiply
    7,681.59x = 11,525.82 × 3,730.68
  4. Step 4: Simplify right side
    7,681.59x = 42,999,146.16
  5. Step 5: Solve for x
    x = 42,999,146.16/7,681.59
  6. Step 6: Final answer
    x = 5,597.69

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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.