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Finding the Fourth Proportional to 1,884.39, 2,600.55 and 1,056.39

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Solution

The fourth proportional to 1,884.39, 2,600.55 and 1,056.39 is: 1,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.39 : 2,600.55 = 1,056.39 : x
  2. Step 2: Convert to fraction form
    1,884.39/2,600.55 = 1,056.39/x
  3. Step 3: Cross multiply
    1,884.39x = 2,600.55 × 1,056.39
  4. Step 4: Simplify right side
    1,884.39x = 2,747,195.01
  5. Step 5: Solve for x
    x = 2,747,195.01/1,884.39
  6. Step 6: Final answer
    x = 1,457.87

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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.