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Finding the Fourth Proportional to 4,939.72, 6,820.94 and 4,583.59

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Solution

The fourth proportional to 4,939.72, 6,820.94 and 4,583.59 is: 6,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.72 : 6,820.94 = 4,583.59 : x
  2. Step 2: Convert to fraction form
    4,939.72/6,820.94 = 4,583.59/x
  3. Step 3: Cross multiply
    4,939.72x = 6,820.94 × 4,583.59
  4. Step 4: Simplify right side
    4,939.72x = 31,264,386.78
  5. Step 5: Solve for x
    x = 31,264,386.78/4,939.72
  6. Step 6: Final answer
    x = 6,329.19

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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.