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Finding the Fourth Proportional to 35,905.40, 53,825.70 and 23,431.40

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Solution

The fourth proportional to 35,905.40, 53,825.70 and 23,431.40 is: 35,125.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.40 : 53,825.70 = 23,431.40 : x
  2. Step 2: Convert to fraction form
    35,905.40/53,825.70 = 23,431.40/x
  3. Step 3: Cross multiply
    35,905.40x = 53,825.70 × 23,431.40
  4. Step 4: Simplify right side
    35,905.40x = 1,261,211,506.98
  5. Step 5: Solve for x
    x = 1,261,211,506.98/35,905.40
  6. Step 6: Final answer
    x = 35,125.96

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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.