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Finding the Fourth Proportional to 61,671.12, 92,506.08 and 19,555.20

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Solution

The fourth proportional to 61,671.12, 92,506.08 and 19,555.20 is: 29,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,671.12 : 92,506.08 = 19,555.20 : x
  2. Step 2: Convert to fraction form
    61,671.12/92,506.08 = 19,555.20/x
  3. Step 3: Cross multiply
    61,671.12x = 92,506.08 × 19,555.20
  4. Step 4: Simplify right side
    61,671.12x = 1,808,974,895.62
  5. Step 5: Solve for x
    x = 1,808,974,895.62/61,671.12
  6. Step 6: Final answer
    x = 29,332.61

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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.