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Finding the Fourth Proportional to 35,774.97, 53,672.01 and 12,401.40

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Solution

The fourth proportional to 35,774.97, 53,672.01 and 12,401.40 is: 18,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,774.97 : 53,672.01 = 12,401.40 : x
  2. Step 2: Convert to fraction form
    35,774.97/53,672.01 = 12,401.40/x
  3. Step 3: Cross multiply
    35,774.97x = 53,672.01 × 12,401.40
  4. Step 4: Simplify right side
    35,774.97x = 665,608,064.81
  5. Step 5: Solve for x
    x = 665,608,064.81/35,774.97
  6. Step 6: Final answer
    x = 18,605.41

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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.