Home / 53,928.04-80,896.20-18,378.40

Finding the Fourth Proportional to 53,928.04, 80,896.20 and 18,378.40

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Solution

The fourth proportional to 53,928.04, 80,896.20 and 18,378.40 is: 27,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,928.04 : 80,896.20 = 18,378.40 : x
  2. Step 2: Convert to fraction form
    53,928.04/80,896.20 = 18,378.40/x
  3. Step 3: Cross multiply
    53,928.04x = 80,896.20 × 18,378.40
  4. Step 4: Simplify right side
    53,928.04x = 1,486,742,722.08
  5. Step 5: Solve for x
    x = 1,486,742,722.08/53,928.04
  6. Step 6: Final answer
    x = 27,569.01

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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.