Home / 53,905.90-80,862.45-18,366.70

Finding the Fourth Proportional to 53,905.90, 80,862.45 and 18,366.70

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Solution

The fourth proportional to 53,905.90, 80,862.45 and 18,366.70 is: 27,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,905.90 : 80,862.45 = 18,366.70 : x
  2. Step 2: Convert to fraction form
    53,905.90/80,862.45 = 18,366.70/x
  3. Step 3: Cross multiply
    53,905.90x = 80,862.45 × 18,366.70
  4. Step 4: Simplify right side
    53,905.90x = 1,485,176,360.42
  5. Step 5: Solve for x
    x = 1,485,176,360.42/53,905.90
  6. Step 6: Final answer
    x = 27,551.28

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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.