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Finding the Fourth Proportional to 9,915.92, 14,873.93 and 3,995.53

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Solution

The fourth proportional to 9,915.92, 14,873.93 and 3,995.53 is: 5,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.92 : 14,873.93 = 3,995.53 : x
  2. Step 2: Convert to fraction form
    9,915.92/14,873.93 = 3,995.53/x
  3. Step 3: Cross multiply
    9,915.92x = 14,873.93 × 3,995.53
  4. Step 4: Simplify right side
    9,915.92x = 59,429,191.35
  5. Step 5: Solve for x
    x = 59,429,191.35/9,915.92
  6. Step 6: Final answer
    x = 5,993.31

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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.