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Finding the Fourth Proportional to 1,818.15, 2,509.12 and 1,032.27

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Solution

The fourth proportional to 1,818.15, 2,509.12 and 1,032.27 is: 1,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.15 : 2,509.12 = 1,032.27 : x
  2. Step 2: Convert to fraction form
    1,818.15/2,509.12 = 1,032.27/x
  3. Step 3: Cross multiply
    1,818.15x = 2,509.12 × 1,032.27
  4. Step 4: Simplify right side
    1,818.15x = 2,590,089.30
  5. Step 5: Solve for x
    x = 2,590,089.30/1,818.15
  6. Step 6: Final answer
    x = 1,424.57

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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.