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Finding the Fourth Proportional to 58,745.40, 87,950.40 and 38,984.64

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Solution

The fourth proportional to 58,745.40, 87,950.40 and 38,984.64 is: 58,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,745.40 : 87,950.40 = 38,984.64 : x
  2. Step 2: Convert to fraction form
    58,745.40/87,950.40 = 38,984.64/x
  3. Step 3: Cross multiply
    58,745.40x = 87,950.40 × 38,984.64
  4. Step 4: Simplify right side
    58,745.40x = 3,428,714,681.86
  5. Step 5: Solve for x
    x = 3,428,714,681.86/58,745.40
  6. Step 6: Final answer
    x = 58,365.67

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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.