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Finding the Fourth Proportional to 11,892,603.20, 17,838,904.80 and 9,793,083.20

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Solution

The fourth proportional to 11,892,603.20, 17,838,904.80 and 9,793,083.20 is: 14,689,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892,603.20 : 17,838,904.80 = 9,793,083.20 : x
  2. Step 2: Convert to fraction form
    11,892,603.20/17,838,904.80 = 9,793,083.20/x
  3. Step 3: Cross multiply
    11,892,603.20x = 17,838,904.80 × 9,793,083.20
  4. Step 4: Simplify right side
    11,892,603.20x = 174,697,878,903,279.34
  5. Step 5: Solve for x
    x = 174,697,878,903,279.34/11,892,603.20
  6. Step 6: Final answer
    x = 14,689,624.80

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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.