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Finding the Fourth Proportional to 7,365,376.80, 11,029,402.80 and 5,872,384.80

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Solution

The fourth proportional to 7,365,376.80, 11,029,402.80 and 5,872,384.80 is: 8,793,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365,376.80 : 11,029,402.80 = 5,872,384.80 : x
  2. Step 2: Convert to fraction form
    7,365,376.80/11,029,402.80 = 5,872,384.80/x
  3. Step 3: Cross multiply
    7,365,376.80x = 11,029,402.80 × 5,872,384.80
  4. Step 4: Simplify right side
    7,365,376.80x = 64,768,897,355,797.45
  5. Step 5: Solve for x
    x = 64,768,897,355,797.45/7,365,376.80
  6. Step 6: Final answer
    x = 8,793,697.74

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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.