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Finding the Fourth Proportional to 1,842.64, 2,542.55 and 1,056.53

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Solution

The fourth proportional to 1,842.64, 2,542.55 and 1,056.53 is: 1,457.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.64 : 2,542.55 = 1,056.53 : x
  2. Step 2: Convert to fraction form
    1,842.64/2,542.55 = 1,056.53/x
  3. Step 3: Cross multiply
    1,842.64x = 2,542.55 × 1,056.53
  4. Step 4: Simplify right side
    1,842.64x = 2,686,280.35
  5. Step 5: Solve for x
    x = 2,686,280.35/1,842.64
  6. Step 6: Final answer
    x = 1,457.84

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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.