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Finding the Fourth Proportional to 61,476.40, 92,214.60 and 19,923.40

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Solution

The fourth proportional to 61,476.40, 92,214.60 and 19,923.40 is: 29,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,476.40 : 92,214.60 = 19,923.40 : x
  2. Step 2: Convert to fraction form
    61,476.40/92,214.60 = 19,923.40/x
  3. Step 3: Cross multiply
    61,476.40x = 92,214.60 × 19,923.40
  4. Step 4: Simplify right side
    61,476.40x = 1,837,228,361.64
  5. Step 5: Solve for x
    x = 1,837,228,361.64/61,476.40
  6. Step 6: Final answer
    x = 29,885.10

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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.