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Finding the Fourth Proportional to 2,482.70, 3,423.06 and 2,085.92

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Solution

The fourth proportional to 2,482.70, 3,423.06 and 2,085.92 is: 2,875.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.70 : 3,423.06 = 2,085.92 : x
  2. Step 2: Convert to fraction form
    2,482.70/3,423.06 = 2,085.92/x
  3. Step 3: Cross multiply
    2,482.70x = 3,423.06 × 2,085.92
  4. Step 4: Simplify right side
    2,482.70x = 7,140,229.32
  5. Step 5: Solve for x
    x = 7,140,229.32/2,482.70
  6. Step 6: Final answer
    x = 2,875.99

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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.