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Finding the Fourth Proportional to 39,760.58, 59,603.79 and 13,447.01

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Solution

The fourth proportional to 39,760.58, 59,603.79 and 13,447.01 is: 20,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,760.58 : 59,603.79 = 13,447.01 : x
  2. Step 2: Convert to fraction form
    39,760.58/59,603.79 = 13,447.01/x
  3. Step 3: Cross multiply
    39,760.58x = 59,603.79 × 13,447.01
  4. Step 4: Simplify right side
    39,760.58x = 801,492,760.17
  5. Step 5: Solve for x
    x = 801,492,760.17/39,760.58
  6. Step 6: Final answer
    x = 20,157.97

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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.