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Finding the Fourth Proportional to 16,787,801.40, 25,181,702.10 and 15,465,103.80

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Solution

The fourth proportional to 16,787,801.40, 25,181,702.10 and 15,465,103.80 is: 23,197,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787,801.40 : 25,181,702.10 = 15,465,103.80 : x
  2. Step 2: Convert to fraction form
    16,787,801.40/25,181,702.10 = 15,465,103.80/x
  3. Step 3: Cross multiply
    16,787,801.40x = 25,181,702.10 × 15,465,103.80
  4. Step 4: Simplify right side
    16,787,801.40x = 389,437,636,837,178
  5. Step 5: Solve for x
    x = 389,437,636,837,178/16,787,801.40
  6. Step 6: Final answer
    x = 23,197,655.70

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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.