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Finding the Fourth Proportional to 43,823.04, 65,745.54 and 12,658.29

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Solution

The fourth proportional to 43,823.04, 65,745.54 and 12,658.29 is: 18,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,823.04 : 65,745.54 = 12,658.29 : x
  2. Step 2: Convert to fraction form
    43,823.04/65,745.54 = 12,658.29/x
  3. Step 3: Cross multiply
    43,823.04x = 65,745.54 × 12,658.29
  4. Step 4: Simplify right side
    43,823.04x = 832,226,111.53
  5. Step 5: Solve for x
    x = 832,226,111.53/43,823.04
  6. Step 6: Final answer
    x = 18,990.61

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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.