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Finding the Fourth Proportional to 43,681.65, 65,522.47 and 14,103.84

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Solution

The fourth proportional to 43,681.65, 65,522.47 and 14,103.84 is: 21,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,681.65 : 65,522.47 = 14,103.84 : x
  2. Step 2: Convert to fraction form
    43,681.65/65,522.47 = 14,103.84/x
  3. Step 3: Cross multiply
    43,681.65x = 65,522.47 × 14,103.84
  4. Step 4: Simplify right side
    43,681.65x = 924,118,468.54
  5. Step 5: Solve for x
    x = 924,118,468.54/43,681.65
  6. Step 6: Final answer
    x = 21,155.76

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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.