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Finding the Fourth Proportional to 43,403.94, 65,104.65 and 13,823.55

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Solution

The fourth proportional to 43,403.94, 65,104.65 and 13,823.55 is: 20,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,403.94 : 65,104.65 = 13,823.55 : x
  2. Step 2: Convert to fraction form
    43,403.94/65,104.65 = 13,823.55/x
  3. Step 3: Cross multiply
    43,403.94x = 65,104.65 × 13,823.55
  4. Step 4: Simplify right side
    43,403.94x = 899,977,384.51
  5. Step 5: Solve for x
    x = 899,977,384.51/43,403.94
  6. Step 6: Final answer
    x = 20,734.92

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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.