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Finding the Fourth Proportional to 6,243.54, 8,606.16 and 4,915.14

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Solution

The fourth proportional to 6,243.54, 8,606.16 and 4,915.14 is: 6,775.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.54 : 8,606.16 = 4,915.14 : x
  2. Step 2: Convert to fraction form
    6,243.54/8,606.16 = 4,915.14/x
  3. Step 3: Cross multiply
    6,243.54x = 8,606.16 × 4,915.14
  4. Step 4: Simplify right side
    6,243.54x = 42,300,481.26
  5. Step 5: Solve for x
    x = 42,300,481.26/6,243.54
  6. Step 6: Final answer
    x = 6,775.08

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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.