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Finding the Fourth Proportional to 1,774.53, 2,448.80 and 1,111.74

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Solution

The fourth proportional to 1,774.53, 2,448.80 and 1,111.74 is: 1,534.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.53 : 2,448.80 = 1,111.74 : x
  2. Step 2: Convert to fraction form
    1,774.53/2,448.80 = 1,111.74/x
  3. Step 3: Cross multiply
    1,774.53x = 2,448.80 × 1,111.74
  4. Step 4: Simplify right side
    1,774.53x = 2,722,423.35
  5. Step 5: Solve for x
    x = 2,722,423.35/1,774.53
  6. Step 6: Final answer
    x = 1,534.17

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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.