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Finding the Fourth Proportional to 2,947.54, 4,421.32 and 973.36

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Solution

The fourth proportional to 2,947.54, 4,421.32 and 973.36 is: 1,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.54 : 4,421.32 = 973.36 : x
  2. Step 2: Convert to fraction form
    2,947.54/4,421.32 = 973.36/x
  3. Step 3: Cross multiply
    2,947.54x = 4,421.32 × 973.36
  4. Step 4: Simplify right side
    2,947.54x = 4,303,536.04
  5. Step 5: Solve for x
    x = 4,303,536.04/2,947.54
  6. Step 6: Final answer
    x = 1,460.04

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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.