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Finding the Fourth Proportional to 1,167.74, 1,749.48 and 973.03

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Solution

The fourth proportional to 1,167.74, 1,749.48 and 973.03 is: 1,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.74 : 1,749.48 = 973.03 : x
  2. Step 2: Convert to fraction form
    1,167.74/1,749.48 = 973.03/x
  3. Step 3: Cross multiply
    1,167.74x = 1,749.48 × 973.03
  4. Step 4: Simplify right side
    1,167.74x = 1,702,296.52
  5. Step 5: Solve for x
    x = 1,702,296.52/1,167.74
  6. Step 6: Final answer
    x = 1,457.77

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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.