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Finding the Fourth Proportional to 1,973.04, 2,959.62 and 674.50

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Solution

The fourth proportional to 1,973.04, 2,959.62 and 674.50 is: 1,011.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.04 : 2,959.62 = 674.50 : x
  2. Step 2: Convert to fraction form
    1,973.04/2,959.62 = 674.50/x
  3. Step 3: Cross multiply
    1,973.04x = 2,959.62 × 674.50
  4. Step 4: Simplify right side
    1,973.04x = 1,996,263.69
  5. Step 5: Solve for x
    x = 1,996,263.69/1,973.04
  6. Step 6: Final answer
    x = 1,011.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.