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Finding the Fourth Proportional to 7,192.59, 9,915.62 and 7,093.95

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Solution

The fourth proportional to 7,192.59, 9,915.62 and 7,093.95 is: 9,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.59 : 9,915.62 = 7,093.95 : x
  2. Step 2: Convert to fraction form
    7,192.59/9,915.62 = 7,093.95/x
  3. Step 3: Cross multiply
    7,192.59x = 9,915.62 × 7,093.95
  4. Step 4: Simplify right side
    7,192.59x = 70,340,877.03
  5. Step 5: Solve for x
    x = 70,340,877.03/7,192.59
  6. Step 6: Final answer
    x = 9,779.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.