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Finding the Fourth Proportional to 47,398.56, 65,408.76 and 26,177.40

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Solution

The fourth proportional to 47,398.56, 65,408.76 and 26,177.40 is: 36,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,398.56 : 65,408.76 = 26,177.40 : x
  2. Step 2: Convert to fraction form
    47,398.56/65,408.76 = 26,177.40/x
  3. Step 3: Cross multiply
    47,398.56x = 65,408.76 × 26,177.40
  4. Step 4: Simplify right side
    47,398.56x = 1,712,231,274.02
  5. Step 5: Solve for x
    x = 1,712,231,274.02/47,398.56
  6. Step 6: Final answer
    x = 36,124.12

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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.