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Finding the Fourth Proportional to 7,292,956.40, 10,939,434.60 and 7,292,956.40

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Solution

The fourth proportional to 7,292,956.40, 10,939,434.60 and 7,292,956.40 is: 10,939,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292,956.40 : 10,939,434.60 = 7,292,956.40 : x
  2. Step 2: Convert to fraction form
    7,292,956.40/10,939,434.60 = 7,292,956.40/x
  3. Step 3: Cross multiply
    7,292,956.40x = 10,939,434.60 × 7,292,956.40
  4. Step 4: Simplify right side
    7,292,956.40x = 79,780,819,578,451.44
  5. Step 5: Solve for x
    x = 79,780,819,578,451.44/7,292,956.40
  6. Step 6: Final answer
    x = 10,939,434.60

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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.