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Finding the Fourth Proportional to 14,571,978.60, 21,857,967.90 and 4,475,101.80

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Solution

The fourth proportional to 14,571,978.60, 21,857,967.90 and 4,475,101.80 is: 6,712,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,571,978.60 : 21,857,967.90 = 4,475,101.80 : x
  2. Step 2: Convert to fraction form
    14,571,978.60/21,857,967.90 = 4,475,101.80/x
  3. Step 3: Cross multiply
    14,571,978.60x = 21,857,967.90 × 4,475,101.80
  4. Step 4: Simplify right side
    14,571,978.60x = 97,816,631,493,632.20
  5. Step 5: Solve for x
    x = 97,816,631,493,632.20/14,571,978.60
  6. Step 6: Final answer
    x = 6,712,652.70

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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.