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Finding the Fourth Proportional to 1,874.70, 2,812.86 and 1,482.12

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Solution

The fourth proportional to 1,874.70, 2,812.86 and 1,482.12 is: 2,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.70 : 2,812.86 = 1,482.12 : x
  2. Step 2: Convert to fraction form
    1,874.70/2,812.86 = 1,482.12/x
  3. Step 3: Cross multiply
    1,874.70x = 2,812.86 × 1,482.12
  4. Step 4: Simplify right side
    1,874.70x = 4,168,996.06
  5. Step 5: Solve for x
    x = 4,168,996.06/1,874.70
  6. Step 6: Final answer
    x = 2,223.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.