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Finding the Fourth Proportional to 4,970.84, 6,859.00 and 2,874.56

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Solution

The fourth proportional to 4,970.84, 6,859.00 and 2,874.56 is: 3,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.84 : 6,859.00 = 2,874.56 : x
  2. Step 2: Convert to fraction form
    4,970.84/6,859.00 = 2,874.56/x
  3. Step 3: Cross multiply
    4,970.84x = 6,859.00 × 2,874.56
  4. Step 4: Simplify right side
    4,970.84x = 19,716,617.00
  5. Step 5: Solve for x
    x = 19,716,617.00/4,970.84
  6. Step 6: Final answer
    x = 3,966.45

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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.