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Finding the Fourth Proportional to 12,599.66, 18,886.32 and 4,698.74

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Solution

The fourth proportional to 12,599.66, 18,886.32 and 4,698.74 is: 7,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.66 : 18,886.32 = 4,698.74 : x
  2. Step 2: Convert to fraction form
    12,599.66/18,886.32 = 4,698.74/x
  3. Step 3: Cross multiply
    12,599.66x = 18,886.32 × 4,698.74
  4. Step 4: Simplify right side
    12,599.66x = 88,741,954.45
  5. Step 5: Solve for x
    x = 88,741,954.45/12,599.66
  6. Step 6: Final answer
    x = 7,043.20

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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.