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Finding the Fourth Proportional to 7,984,762.72, 11,019,001.20 and 4,363,090.72

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Solution

The fourth proportional to 7,984,762.72, 11,019,001.20 and 4,363,090.72 is: 6,021,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984,762.72 : 11,019,001.20 = 4,363,090.72 : x
  2. Step 2: Convert to fraction form
    7,984,762.72/11,019,001.20 = 4,363,090.72/x
  3. Step 3: Cross multiply
    7,984,762.72x = 11,019,001.20 × 4,363,090.72
  4. Step 4: Simplify right side
    7,984,762.72x = 48,076,901,879,388.86
  5. Step 5: Solve for x
    x = 48,076,901,879,388.86/7,984,762.72
  6. Step 6: Final answer
    x = 6,021,080.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.