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Finding the Fourth Proportional to 66,598.32, 99,874.08 and 19,200.76

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Solution

The fourth proportional to 66,598.32, 99,874.08 and 19,200.76 is: 28,794.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,598.32 : 99,874.08 = 19,200.76 : x
  2. Step 2: Convert to fraction form
    66,598.32/99,874.08 = 19,200.76/x
  3. Step 3: Cross multiply
    66,598.32x = 99,874.08 × 19,200.76
  4. Step 4: Simplify right side
    66,598.32x = 1,917,658,240.30
  5. Step 5: Solve for x
    x = 1,917,658,240.30/66,598.32
  6. Step 6: Final answer
    x = 28,794.39

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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.