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Finding the Fourth Proportional to 58,615.25, 80,890.75 and 34,430.67

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Solution

The fourth proportional to 58,615.25, 80,890.75 and 34,430.67 is: 47,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,615.25 : 80,890.75 = 34,430.67 : x
  2. Step 2: Convert to fraction form
    58,615.25/80,890.75 = 34,430.67/x
  3. Step 3: Cross multiply
    58,615.25x = 80,890.75 × 34,430.67
  4. Step 4: Simplify right side
    58,615.25x = 2,785,122,762.34
  5. Step 5: Solve for x
    x = 2,785,122,762.34/58,615.25
  6. Step 6: Final answer
    x = 47,515.33

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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.