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Finding the Fourth Proportional to 2,334.85, 3,502.53 and 947.98

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Solution

The fourth proportional to 2,334.85, 3,502.53 and 947.98 is: 1,422.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.85 : 3,502.53 = 947.98 : x
  2. Step 2: Convert to fraction form
    2,334.85/3,502.53 = 947.98/x
  3. Step 3: Cross multiply
    2,334.85x = 3,502.53 × 947.98
  4. Step 4: Simplify right side
    2,334.85x = 3,320,341.52
  5. Step 5: Solve for x
    x = 3,320,341.52/2,334.85
  6. Step 6: Final answer
    x = 1,422.08

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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.