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Finding the Fourth Proportional to 66,386.02, 99,579.02 and 19,635.24

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Solution

The fourth proportional to 66,386.02, 99,579.02 and 19,635.24 is: 29,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.02 : 99,579.02 = 19,635.24 : x
  2. Step 2: Convert to fraction form
    66,386.02/99,579.02 = 19,635.24/x
  3. Step 3: Cross multiply
    66,386.02x = 99,579.02 × 19,635.24
  4. Step 4: Simplify right side
    66,386.02x = 1,955,257,956.66
  5. Step 5: Solve for x
    x = 1,955,257,956.66/66,386.02
  6. Step 6: Final answer
    x = 29,452.86

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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.