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Finding the Fourth Proportional to 47,615.68, 65,709.68 and 26,395.20

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Solution

The fourth proportional to 47,615.68, 65,709.68 and 26,395.20 is: 36,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615.68 : 65,709.68 = 26,395.20 : x
  2. Step 2: Convert to fraction form
    47,615.68/65,709.68 = 26,395.20/x
  3. Step 3: Cross multiply
    47,615.68x = 65,709.68 × 26,395.20
  4. Step 4: Simplify right side
    47,615.68x = 1,734,420,145.54
  5. Step 5: Solve for x
    x = 1,734,420,145.54/47,615.68
  6. Step 6: Final answer
    x = 36,425.40

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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.