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Finding the Fourth Proportional to 15,260.40, 22,880.88 and 7,873.20

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Solution

The fourth proportional to 15,260.40, 22,880.88 and 7,873.20 is: 11,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.40 : 22,880.88 = 7,873.20 : x
  2. Step 2: Convert to fraction form
    15,260.40/22,880.88 = 7,873.20/x
  3. Step 3: Cross multiply
    15,260.40x = 22,880.88 × 7,873.20
  4. Step 4: Simplify right side
    15,260.40x = 180,145,744.42
  5. Step 5: Solve for x
    x = 180,145,744.42/15,260.40
  6. Step 6: Final answer
    x = 11,804.79

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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.