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Finding the Fourth Proportional to 1,860.71, 2,567.73 and 1,074.74

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Solution

The fourth proportional to 1,860.71, 2,567.73 and 1,074.74 is: 1,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.71 : 2,567.73 = 1,074.74 : x
  2. Step 2: Convert to fraction form
    1,860.71/2,567.73 = 1,074.74/x
  3. Step 3: Cross multiply
    1,860.71x = 2,567.73 × 1,074.74
  4. Step 4: Simplify right side
    1,860.71x = 2,759,642.14
  5. Step 5: Solve for x
    x = 2,759,642.14/1,860.71
  6. Step 6: Final answer
    x = 1,483.11

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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.