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Finding the Fourth Proportional to 66,246.60, 99,335.70 and 19,493.40

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Solution

The fourth proportional to 66,246.60, 99,335.70 and 19,493.40 is: 29,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,246.60 : 99,335.70 = 19,493.40 : x
  2. Step 2: Convert to fraction form
    66,246.60/99,335.70 = 19,493.40/x
  3. Step 3: Cross multiply
    66,246.60x = 99,335.70 × 19,493.40
  4. Step 4: Simplify right side
    66,246.60x = 1,936,390,534.38
  5. Step 5: Solve for x
    x = 1,936,390,534.38/66,246.60
  6. Step 6: Final answer
    x = 29,230.04

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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.