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Finding the Fourth Proportional to 52,840.45, 79,260.00 and 12,859.50

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Solution

The fourth proportional to 52,840.45, 79,260.00 and 12,859.50 is: 19,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,840.45 : 79,260.00 = 12,859.50 : x
  2. Step 2: Convert to fraction form
    52,840.45/79,260.00 = 12,859.50/x
  3. Step 3: Cross multiply
    52,840.45x = 79,260.00 × 12,859.50
  4. Step 4: Simplify right side
    52,840.45x = 1,019,244,225.72
  5. Step 5: Solve for x
    x = 1,019,244,225.72/52,840.45
  6. Step 6: Final answer
    x = 19,289.09

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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.