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Finding the Fourth Proportional to 10,473,292.80, 15,674,509.80 and 9,197,834.40

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Solution

The fourth proportional to 10,473,292.80, 15,674,509.80 and 9,197,834.40 is: 13,765,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,473,292.80 : 15,674,509.80 = 9,197,834.40 : x
  2. Step 2: Convert to fraction form
    10,473,292.80/15,674,509.80 = 9,197,834.40/x
  3. Step 3: Cross multiply
    10,473,292.80x = 15,674,509.80 × 9,197,834.40
  4. Step 4: Simplify right side
    10,473,292.80x = 144,171,545,441,577.12
  5. Step 5: Solve for x
    x = 144,171,545,441,577.12/10,473,292.80
  6. Step 6: Final answer
    x = 13,765,636.86

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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.