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Finding the Fourth Proportional to 7,915.08, 10,923.11 and 4,330.28

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Solution

The fourth proportional to 7,915.08, 10,923.11 and 4,330.28 is: 5,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.08 : 10,923.11 = 4,330.28 : x
  2. Step 2: Convert to fraction form
    7,915.08/10,923.11 = 4,330.28/x
  3. Step 3: Cross multiply
    7,915.08x = 10,923.11 × 4,330.28
  4. Step 4: Simplify right side
    7,915.08x = 47,300,124.77
  5. Step 5: Solve for x
    x = 47,300,124.77/7,915.08
  6. Step 6: Final answer
    x = 5,975.95

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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.