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Finding the Fourth Proportional to 43,400.79, 65,103.72 and 16,746.92

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Solution

The fourth proportional to 43,400.79, 65,103.72 and 16,746.92 is: 25,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,400.79 : 65,103.72 = 16,746.92 : x
  2. Step 2: Convert to fraction form
    43,400.79/65,103.72 = 16,746.92/x
  3. Step 3: Cross multiply
    43,400.79x = 65,103.72 × 16,746.92
  4. Step 4: Simplify right side
    43,400.79x = 1,090,286,465.02
  5. Step 5: Solve for x
    x = 1,090,286,465.02/43,400.79
  6. Step 6: Final answer
    x = 25,121.35

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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.