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Finding the Fourth Proportional to 9,658,971.80, 14,488,457.70 and 8,651,202.20

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Solution

The fourth proportional to 9,658,971.80, 14,488,457.70 and 8,651,202.20 is: 12,976,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,658,971.80 : 14,488,457.70 = 8,651,202.20 : x
  2. Step 2: Convert to fraction form
    9,658,971.80/14,488,457.70 = 8,651,202.20/x
  3. Step 3: Cross multiply
    9,658,971.80x = 14,488,457.70 × 8,651,202.20
  4. Step 4: Simplify right side
    9,658,971.80x = 125,342,577,128,846.92
  5. Step 5: Solve for x
    x = 125,342,577,128,846.92/9,658,971.80
  6. Step 6: Final answer
    x = 12,976,803.30

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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.