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Finding the Fourth Proportional to 4,915.98, 6,784.10 and 2,677.87

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Solution

The fourth proportional to 4,915.98, 6,784.10 and 2,677.87 is: 3,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.98 : 6,784.10 = 2,677.87 : x
  2. Step 2: Convert to fraction form
    4,915.98/6,784.10 = 2,677.87/x
  3. Step 3: Cross multiply
    4,915.98x = 6,784.10 × 2,677.87
  4. Step 4: Simplify right side
    4,915.98x = 18,166,927.60
  5. Step 5: Solve for x
    x = 18,166,927.60/4,915.98
  6. Step 6: Final answer
    x = 3,695.49

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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.