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Finding the Fourth Proportional to 18,952,750.55, 28,354,325.60 and 14,354,981.48

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Solution

The fourth proportional to 18,952,750.55, 28,354,325.60 and 14,354,981.48 is: 21,475,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952,750.55 : 28,354,325.60 = 14,354,981.48 : x
  2. Step 2: Convert to fraction form
    18,952,750.55/28,354,325.60 = 14,354,981.48/x
  3. Step 3: Cross multiply
    18,952,750.55x = 28,354,325.60 × 14,354,981.48
  4. Step 4: Simplify right side
    18,952,750.55x = 407,025,818,972,663.12
  5. Step 5: Solve for x
    x = 407,025,818,972,663.12/18,952,750.55
  6. Step 6: Final answer
    x = 21,475,817.87

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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.