Home / 66,534.68-99,816.37-19,149.45

Finding the Fourth Proportional to 66,534.68, 99,816.37 and 19,149.45

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Solution

The fourth proportional to 66,534.68, 99,816.37 and 19,149.45 is: 28,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,534.68 : 99,816.37 = 19,149.45 : x
  2. Step 2: Convert to fraction form
    66,534.68/99,816.37 = 19,149.45/x
  3. Step 3: Cross multiply
    66,534.68x = 99,816.37 × 19,149.45
  4. Step 4: Simplify right side
    66,534.68x = 1,911,428,164.31
  5. Step 5: Solve for x
    x = 1,911,428,164.31/66,534.68
  6. Step 6: Final answer
    x = 28,728.30

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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.