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Finding the Fourth Proportional to 9,978,066.60, 14,973,004.80 and 6,576,188.10

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Solution

The fourth proportional to 9,978,066.60, 14,973,004.80 and 6,576,188.10 is: 9,868,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,066.60 : 14,973,004.80 = 6,576,188.10 : x
  2. Step 2: Convert to fraction form
    9,978,066.60/14,973,004.80 = 6,576,188.10/x
  3. Step 3: Cross multiply
    9,978,066.60x = 14,973,004.80 × 6,576,188.10
  4. Step 4: Simplify right side
    9,978,066.60x = 98,465,295,987,002.88
  5. Step 5: Solve for x
    x = 98,465,295,987,002.88/9,978,066.60
  6. Step 6: Final answer
    x = 9,868,173.86

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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.