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Finding the Fourth Proportional to 3,060.59, 4,223.95 and 1,865.63

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Solution

The fourth proportional to 3,060.59, 4,223.95 and 1,865.63 is: 2,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.59 : 4,223.95 = 1,865.63 : x
  2. Step 2: Convert to fraction form
    3,060.59/4,223.95 = 1,865.63/x
  3. Step 3: Cross multiply
    3,060.59x = 4,223.95 × 1,865.63
  4. Step 4: Simplify right side
    3,060.59x = 7,880,333.73
  5. Step 5: Solve for x
    x = 7,880,333.73/3,060.59
  6. Step 6: Final answer
    x = 2,574.78

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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.