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Finding the Fourth Proportional to 4,889.79, 6,746.70 and 2,900.82

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Solution

The fourth proportional to 4,889.79, 6,746.70 and 2,900.82 is: 4,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.79 : 6,746.70 = 2,900.82 : x
  2. Step 2: Convert to fraction form
    4,889.79/6,746.70 = 2,900.82/x
  3. Step 3: Cross multiply
    4,889.79x = 6,746.70 × 2,900.82
  4. Step 4: Simplify right side
    4,889.79x = 19,570,962.29
  5. Step 5: Solve for x
    x = 19,570,962.29/4,889.79
  6. Step 6: Final answer
    x = 4,002.41

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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.