Home / 53,614.40-80,421.60-18,542.40

Finding the Fourth Proportional to 53,614.40, 80,421.60 and 18,542.40

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Solution

The fourth proportional to 53,614.40, 80,421.60 and 18,542.40 is: 27,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,614.40 : 80,421.60 = 18,542.40 : x
  2. Step 2: Convert to fraction form
    53,614.40/80,421.60 = 18,542.40/x
  3. Step 3: Cross multiply
    53,614.40x = 80,421.60 × 18,542.40
  4. Step 4: Simplify right side
    53,614.40x = 1,491,209,475.84
  5. Step 5: Solve for x
    x = 1,491,209,475.84/53,614.40
  6. Step 6: Final answer
    x = 27,813.60

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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.