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Finding the Fourth Proportional to 7,400.59, 11,100.63 and 1,853.98

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Solution

The fourth proportional to 7,400.59, 11,100.63 and 1,853.98 is: 2,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.59 : 11,100.63 = 1,853.98 : x
  2. Step 2: Convert to fraction form
    7,400.59/11,100.63 = 1,853.98/x
  3. Step 3: Cross multiply
    7,400.59x = 11,100.63 × 1,853.98
  4. Step 4: Simplify right side
    7,400.59x = 20,580,373.76
  5. Step 5: Solve for x
    x = 20,580,373.76/7,400.59
  6. Step 6: Final answer
    x = 2,780.91

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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.