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Finding the Fourth Proportional to 43,502.80, 65,262.36 and 15,038.32

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Solution

The fourth proportional to 43,502.80, 65,262.36 and 15,038.32 is: 22,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,502.80 : 65,262.36 = 15,038.32 : x
  2. Step 2: Convert to fraction form
    43,502.80/65,262.36 = 15,038.32/x
  3. Step 3: Cross multiply
    43,502.80x = 65,262.36 × 15,038.32
  4. Step 4: Simplify right side
    43,502.80x = 981,436,253.64
  5. Step 5: Solve for x
    x = 981,436,253.64/43,502.80
  6. Step 6: Final answer
    x = 22,560.30

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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.