Home / 65,939.37-98,905.95-21,560.28

Finding the Fourth Proportional to 65,939.37, 98,905.95 and 21,560.28

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Solution

The fourth proportional to 65,939.37, 98,905.95 and 21,560.28 is: 32,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,939.37 : 98,905.95 = 21,560.28 : x
  2. Step 2: Convert to fraction form
    65,939.37/98,905.95 = 21,560.28/x
  3. Step 3: Cross multiply
    65,939.37x = 98,905.95 × 21,560.28
  4. Step 4: Simplify right side
    65,939.37x = 2,132,439,975.67
  5. Step 5: Solve for x
    x = 2,132,439,975.67/65,939.37
  6. Step 6: Final answer
    x = 32,339.40

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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.