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Finding the Fourth Proportional to 2,482.75, 3,425.01 and 1,487.84

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Solution

The fourth proportional to 2,482.75, 3,425.01 and 1,487.84 is: 2,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.75 : 3,425.01 = 1,487.84 : x
  2. Step 2: Convert to fraction form
    2,482.75/3,425.01 = 1,487.84/x
  3. Step 3: Cross multiply
    2,482.75x = 3,425.01 × 1,487.84
  4. Step 4: Simplify right side
    2,482.75x = 5,095,877.26
  5. Step 5: Solve for x
    x = 5,095,877.26/2,482.75
  6. Step 6: Final answer
    x = 2,052.51

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Find fourth proportional to 1,241.38, 1,712.50 and 743.92
Half scale
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Double scale
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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.