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Finding the Fourth Proportional to 24,368.78, 36,485.71 and 12,496.95

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Solution

The fourth proportional to 24,368.78, 36,485.71 and 12,496.95 is: 18,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,368.78 : 36,485.71 = 12,496.95 : x
  2. Step 2: Convert to fraction form
    24,368.78/36,485.71 = 12,496.95/x
  3. Step 3: Cross multiply
    24,368.78x = 36,485.71 × 12,496.95
  4. Step 4: Simplify right side
    24,368.78x = 455,960,062.34
  5. Step 5: Solve for x
    x = 455,960,062.34/24,368.78
  6. Step 6: Final answer
    x = 18,710.83

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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.