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Finding the Fourth Proportional to 7,696.69, 11,526.14 and 4,915.15

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Solution

The fourth proportional to 7,696.69, 11,526.14 and 4,915.15 is: 7,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.69 : 11,526.14 = 4,915.15 : x
  2. Step 2: Convert to fraction form
    7,696.69/11,526.14 = 4,915.15/x
  3. Step 3: Cross multiply
    7,696.69x = 11,526.14 × 4,915.15
  4. Step 4: Simplify right side
    7,696.69x = 56,652,682.45
  5. Step 5: Solve for x
    x = 56,652,682.45/7,696.69
  6. Step 6: Final answer
    x = 7,360.66

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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.