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Finding the Fourth Proportional to 27,260.30, 40,902.60 and 12,461.60

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Solution

The fourth proportional to 27,260.30, 40,902.60 and 12,461.60 is: 18,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,260.30 : 40,902.60 = 12,461.60 : x
  2. Step 2: Convert to fraction form
    27,260.30/40,902.60 = 12,461.60/x
  3. Step 3: Cross multiply
    27,260.30x = 40,902.60 × 12,461.60
  4. Step 4: Simplify right side
    27,260.30x = 509,711,840.16
  5. Step 5: Solve for x
    x = 509,711,840.16/27,260.30
  6. Step 6: Final answer
    x = 18,697.95

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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.