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Finding the Fourth Proportional to 7,243,804.60, 10,865,706.90 and 4,374,023.20

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Solution

The fourth proportional to 7,243,804.60, 10,865,706.90 and 4,374,023.20 is: 6,561,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,804.60 : 10,865,706.90 = 4,374,023.20 : x
  2. Step 2: Convert to fraction form
    7,243,804.60/10,865,706.90 = 4,374,023.20/x
  3. Step 3: Cross multiply
    7,243,804.60x = 10,865,706.90 × 4,374,023.20
  4. Step 4: Simplify right side
    7,243,804.60x = 47,526,854,065,000.09
  5. Step 5: Solve for x
    x = 47,526,854,065,000.09/7,243,804.60
  6. Step 6: Final answer
    x = 6,561,034.80

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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.