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Finding the Fourth Proportional to 1,360.58, 1,875.94 and 1,150.38

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Solution

The fourth proportional to 1,360.58, 1,875.94 and 1,150.38 is: 1,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.58 : 1,875.94 = 1,150.38 : x
  2. Step 2: Convert to fraction form
    1,360.58/1,875.94 = 1,150.38/x
  3. Step 3: Cross multiply
    1,360.58x = 1,875.94 × 1,150.38
  4. Step 4: Simplify right side
    1,360.58x = 2,158,043.86
  5. Step 5: Solve for x
    x = 2,158,043.86/1,360.58
  6. Step 6: Final answer
    x = 1,586.12

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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.