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Finding the Fourth Proportional to 37,655.51, 51,965.14 and 20,659.45

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Solution

The fourth proportional to 37,655.51, 51,965.14 and 20,659.45 is: 28,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,655.51 : 51,965.14 = 20,659.45 : x
  2. Step 2: Convert to fraction form
    37,655.51/51,965.14 = 20,659.45/x
  3. Step 3: Cross multiply
    37,655.51x = 51,965.14 × 20,659.45
  4. Step 4: Simplify right side
    37,655.51x = 1,073,570,978.36
  5. Step 5: Solve for x
    x = 1,073,570,978.36/37,655.51
  6. Step 6: Final answer
    x = 28,510.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.