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Finding the Fourth Proportional to 1,959.99, 2,704.75 and 1,075.74

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Solution

The fourth proportional to 1,959.99, 2,704.75 and 1,075.74 is: 1,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.99 : 2,704.75 = 1,075.74 : x
  2. Step 2: Convert to fraction form
    1,959.99/2,704.75 = 1,075.74/x
  3. Step 3: Cross multiply
    1,959.99x = 2,704.75 × 1,075.74
  4. Step 4: Simplify right side
    1,959.99x = 2,909,607.77
  5. Step 5: Solve for x
    x = 2,909,607.77/1,959.99
  6. Step 6: Final answer
    x = 1,484.50

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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.