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Finding the Fourth Proportional to 9,985,603.70, 14,978,405.55 and 6,584,381.30

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Solution

The fourth proportional to 9,985,603.70, 14,978,405.55 and 6,584,381.30 is: 9,876,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985,603.70 : 14,978,405.55 = 6,584,381.30 : x
  2. Step 2: Convert to fraction form
    9,985,603.70/14,978,405.55 = 6,584,381.30/x
  3. Step 3: Cross multiply
    9,985,603.70x = 14,978,405.55 × 6,584,381.30
  4. Step 4: Simplify right side
    9,985,603.70x = 98,623,533,407,236.22
  5. Step 5: Solve for x
    x = 98,623,533,407,236.22/9,985,603.70
  6. Step 6: Final answer
    x = 9,876,571.95

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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.