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Finding the Fourth Proportional to 5,558.58, 7,629.99 and 4,915.01

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Solution

The fourth proportional to 5,558.58, 7,629.99 and 4,915.01 is: 6,746.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.58 : 7,629.99 = 4,915.01 : x
  2. Step 2: Convert to fraction form
    5,558.58/7,629.99 = 4,915.01/x
  3. Step 3: Cross multiply
    5,558.58x = 7,629.99 × 4,915.01
  4. Step 4: Simplify right side
    5,558.58x = 37,501,439.00
  5. Step 5: Solve for x
    x = 37,501,439.00/5,558.58
  6. Step 6: Final answer
    x = 6,746.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.