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Finding the Fourth Proportional to 16,857,987.30, 25,286,980.95 and 16,857,987.30

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Solution

The fourth proportional to 16,857,987.30, 25,286,980.95 and 16,857,987.30 is: 25,286,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857,987.30 : 25,286,980.95 = 16,857,987.30 : x
  2. Step 2: Convert to fraction form
    16,857,987.30/25,286,980.95 = 16,857,987.30/x
  3. Step 3: Cross multiply
    16,857,987.30x = 25,286,980.95 × 16,857,987.30
  4. Step 4: Simplify right side
    16,857,987.30x = 426,287,603,710,441.94
  5. Step 5: Solve for x
    x = 426,287,603,710,441.94/16,857,987.30
  6. Step 6: Final answer
    x = 25,286,980.95

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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.