Home / 51,189.38-70,642.05-28,527.74

Finding the Fourth Proportional to 51,189.38, 70,642.05 and 28,527.74

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Solution

The fourth proportional to 51,189.38, 70,642.05 and 28,527.74 is: 39,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,189.38 : 70,642.05 = 28,527.74 : x
  2. Step 2: Convert to fraction form
    51,189.38/70,642.05 = 28,527.74/x
  3. Step 3: Cross multiply
    51,189.38x = 70,642.05 × 28,527.74
  4. Step 4: Simplify right side
    51,189.38x = 2,015,258,035.47
  5. Step 5: Solve for x
    x = 2,015,258,035.47/51,189.38
  6. Step 6: Final answer
    x = 39,368.67

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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.