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Finding the Fourth Proportional to 9,793,869.20, 14,690,803.80 and 8,702,118.80

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Solution

The fourth proportional to 9,793,869.20, 14,690,803.80 and 8,702,118.80 is: 13,053,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,793,869.20 : 14,690,803.80 = 8,702,118.80 : x
  2. Step 2: Convert to fraction form
    9,793,869.20/14,690,803.80 = 8,702,118.80/x
  3. Step 3: Cross multiply
    9,793,869.20x = 14,690,803.80 × 8,702,118.80
  4. Step 4: Simplify right side
    9,793,869.20x = 127,841,119,935,091.45
  5. Step 5: Solve for x
    x = 127,841,119,935,091.45/9,793,869.20
  6. Step 6: Final answer
    x = 13,053,178.20

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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.