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Finding the Fourth Proportional to 8,915.58, 12,303 and 4,936.59

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Solution

The fourth proportional to 8,915.58, 12,303 and 4,936.59 is: 6,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.58 : 12,303 = 4,936.59 : x
  2. Step 2: Convert to fraction form
    8,915.58/12,303 = 4,936.59/x
  3. Step 3: Cross multiply
    8,915.58x = 12,303 × 4,936.59
  4. Step 4: Simplify right side
    8,915.58x = 60,734,866.77
  5. Step 5: Solve for x
    x = 60,734,866.77/8,915.58
  6. Step 6: Final answer
    x = 6,812.22

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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.