Home / 39,768.64-59,648.47-10,186.70

Finding the Fourth Proportional to 39,768.64, 59,648.47 and 10,186.70

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Solution

The fourth proportional to 39,768.64, 59,648.47 and 10,186.70 is: 15,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.64 : 59,648.47 = 10,186.70 : x
  2. Step 2: Convert to fraction form
    39,768.64/59,648.47 = 10,186.70/x
  3. Step 3: Cross multiply
    39,768.64x = 59,648.47 × 10,186.70
  4. Step 4: Simplify right side
    39,768.64x = 607,620,745.64
  5. Step 5: Solve for x
    x = 607,620,745.64/39,768.64
  6. Step 6: Final answer
    x = 15,278.89

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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.