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Finding the Fourth Proportional to 16,405.60, 24,609.60 and 4,718.92

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Solution

The fourth proportional to 16,405.60, 24,609.60 and 4,718.92 is: 7,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.60 : 24,609.60 = 4,718.92 : x
  2. Step 2: Convert to fraction form
    16,405.60/24,609.60 = 4,718.92/x
  3. Step 3: Cross multiply
    16,405.60x = 24,609.60 × 4,718.92
  4. Step 4: Simplify right side
    16,405.60x = 116,130,733.63
  5. Step 5: Solve for x
    x = 116,130,733.63/16,405.60
  6. Step 6: Final answer
    x = 7,078.73

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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.