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Finding the Fourth Proportional to 58,000.80, 86,828.40 and 34,615.20

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Solution

The fourth proportional to 58,000.80, 86,828.40 and 34,615.20 is: 51,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,000.80 : 86,828.40 = 34,615.20 : x
  2. Step 2: Convert to fraction form
    58,000.80/86,828.40 = 34,615.20/x
  3. Step 3: Cross multiply
    58,000.80x = 86,828.40 × 34,615.20
  4. Step 4: Simplify right side
    58,000.80x = 3,005,582,431.68
  5. Step 5: Solve for x
    x = 3,005,582,431.68/58,000.80
  6. Step 6: Final answer
    x = 51,819.67

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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.