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Finding the Fourth Proportional to 1,899.43, 2,622.02 and 1,153.63

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Solution

The fourth proportional to 1,899.43, 2,622.02 and 1,153.63 is: 1,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.43 : 2,622.02 = 1,153.63 : x
  2. Step 2: Convert to fraction form
    1,899.43/2,622.02 = 1,153.63/x
  3. Step 3: Cross multiply
    1,899.43x = 2,622.02 × 1,153.63
  4. Step 4: Simplify right side
    1,899.43x = 3,024,835.16
  5. Step 5: Solve for x
    x = 3,024,835.16/1,899.43
  6. Step 6: Final answer
    x = 1,592.50

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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.