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Finding the Fourth Proportional to 3,335.50, 4,603 and 1,938.34

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Solution

The fourth proportional to 3,335.50, 4,603 and 1,938.34 is: 2,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.50 : 4,603 = 1,938.34 : x
  2. Step 2: Convert to fraction form
    3,335.50/4,603 = 1,938.34/x
  3. Step 3: Cross multiply
    3,335.50x = 4,603 × 1,938.34
  4. Step 4: Simplify right side
    3,335.50x = 8,922,179.02
  5. Step 5: Solve for x
    x = 8,922,179.02/3,335.50
  6. Step 6: Final answer
    x = 2,674.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.