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Finding the Fourth Proportional to 43,950.67, 65,915.56 and 18,977.07

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Solution

The fourth proportional to 43,950.67, 65,915.56 and 18,977.07 is: 28,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,950.67 : 65,915.56 = 18,977.07 : x
  2. Step 2: Convert to fraction form
    43,950.67/65,915.56 = 18,977.07/x
  3. Step 3: Cross multiply
    43,950.67x = 65,915.56 × 18,977.07
  4. Step 4: Simplify right side
    43,950.67x = 1,250,884,196.21
  5. Step 5: Solve for x
    x = 1,250,884,196.21/43,950.67
  6. Step 6: Final answer
    x = 28,461.10

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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.