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Finding the Fourth Proportional to 9,702,426.80, 14,555,713.80 and 2,971,521.20

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Solution

The fourth proportional to 9,702,426.80, 14,555,713.80 and 2,971,521.20 is: 4,457,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702,426.80 : 14,555,713.80 = 2,971,521.20 : x
  2. Step 2: Convert to fraction form
    9,702,426.80/14,555,713.80 = 2,971,521.20/x
  3. Step 3: Cross multiply
    9,702,426.80x = 14,555,713.80 × 2,971,521.20
  4. Step 4: Simplify right side
    9,702,426.80x = 43,252,612,137,832.56
  5. Step 5: Solve for x
    x = 43,252,612,137,832.56/9,702,426.80
  6. Step 6: Final answer
    x = 4,457,916.87

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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.