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Finding the Fourth Proportional to 58,077.44, 87,124.80 and 20,634.40

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Solution

The fourth proportional to 58,077.44, 87,124.80 and 20,634.40 is: 30,954.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,077.44 : 87,124.80 = 20,634.40 : x
  2. Step 2: Convert to fraction form
    58,077.44/87,124.80 = 20,634.40/x
  3. Step 3: Cross multiply
    58,077.44x = 87,124.80 × 20,634.40
  4. Step 4: Simplify right side
    58,077.44x = 1,797,767,973.12
  5. Step 5: Solve for x
    x = 1,797,767,973.12/58,077.44
  6. Step 6: Final answer
    x = 30,954.67

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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.