Home / 51,189.87-70,647.76-28,530.93

Finding the Fourth Proportional to 51,189.87, 70,647.76 and 28,530.93

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Solution

The fourth proportional to 51,189.87, 70,647.76 and 28,530.93 is: 39,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,189.87 : 70,647.76 = 28,530.93 : x
  2. Step 2: Convert to fraction form
    51,189.87/70,647.76 = 28,530.93/x
  3. Step 3: Cross multiply
    51,189.87x = 70,647.76 × 28,530.93
  4. Step 4: Simplify right side
    51,189.87x = 2,015,646,595.81
  5. Step 5: Solve for x
    x = 2,015,646,595.81/51,189.87
  6. Step 6: Final answer
    x = 39,375.89

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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.