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Finding the Fourth Proportional to 3,598.71, 4,972.64 and 2,818.68

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Solution

The fourth proportional to 3,598.71, 4,972.64 and 2,818.68 is: 3,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598.71 : 4,972.64 = 2,818.68 : x
  2. Step 2: Convert to fraction form
    3,598.71/4,972.64 = 2,818.68/x
  3. Step 3: Cross multiply
    3,598.71x = 4,972.64 × 2,818.68
  4. Step 4: Simplify right side
    3,598.71x = 14,016,266.82
  5. Step 5: Solve for x
    x = 14,016,266.82/3,598.71
  6. Step 6: Final answer
    x = 3,894.80

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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.