Home / 51,189.09-70,631.60-28,527.51

Finding the Fourth Proportional to 51,189.09, 70,631.60 and 28,527.51

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Solution

The fourth proportional to 51,189.09, 70,631.60 and 28,527.51 is: 39,362.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,189.09 : 70,631.60 = 28,527.51 : x
  2. Step 2: Convert to fraction form
    51,189.09/70,631.60 = 28,527.51/x
  3. Step 3: Cross multiply
    51,189.09x = 70,631.60 × 28,527.51
  4. Step 4: Simplify right side
    51,189.09x = 2,014,943,532.68
  5. Step 5: Solve for x
    x = 2,014,943,532.68/51,189.09
  6. Step 6: Final answer
    x = 39,362.75

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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.