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Finding the Fourth Proportional to 7,669.88, 11,437.68 and 7,599.81

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Solution

The fourth proportional to 7,669.88, 11,437.68 and 7,599.81 is: 11,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.88 : 11,437.68 = 7,599.81 : x
  2. Step 2: Convert to fraction form
    7,669.88/11,437.68 = 7,599.81/x
  3. Step 3: Cross multiply
    7,669.88x = 11,437.68 × 7,599.81
  4. Step 4: Simplify right side
    7,669.88x = 86,924,194.84
  5. Step 5: Solve for x
    x = 86,924,194.84/7,669.88
  6. Step 6: Final answer
    x = 11,333.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.