Home / 47,381.76-65,387.20-26,161.60

Finding the Fourth Proportional to 47,381.76, 65,387.20 and 26,161.60

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Solution

The fourth proportional to 47,381.76, 65,387.20 and 26,161.60 is: 36,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,381.76 : 65,387.20 = 26,161.60 : x
  2. Step 2: Convert to fraction form
    47,381.76/65,387.20 = 26,161.60/x
  3. Step 3: Cross multiply
    47,381.76x = 65,387.20 × 26,161.60
  4. Step 4: Simplify right side
    47,381.76x = 1,710,633,771.52
  5. Step 5: Solve for x
    x = 1,710,633,771.52/47,381.76
  6. Step 6: Final answer
    x = 36,103.21

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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.