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Finding the Fourth Proportional to 3,498.95, 5,248.70 and 1,158.86

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Solution

The fourth proportional to 3,498.95, 5,248.70 and 1,158.86 is: 1,738.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.95 : 5,248.70 = 1,158.86 : x
  2. Step 2: Convert to fraction form
    3,498.95/5,248.70 = 1,158.86/x
  3. Step 3: Cross multiply
    3,498.95x = 5,248.70 × 1,158.86
  4. Step 4: Simplify right side
    3,498.95x = 6,082,490.63
  5. Step 5: Solve for x
    x = 6,082,490.63/3,498.95
  6. Step 6: Final answer
    x = 1,738.38

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1.5x scale

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.