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Finding the Fourth Proportional to 18,699,097.60, 28,048,646.40 and 16,683,558.40

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Solution

The fourth proportional to 18,699,097.60, 28,048,646.40 and 16,683,558.40 is: 25,025,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699,097.60 : 28,048,646.40 = 16,683,558.40 : x
  2. Step 2: Convert to fraction form
    18,699,097.60/28,048,646.40 = 16,683,558.40/x
  3. Step 3: Cross multiply
    18,699,097.60x = 28,048,646.40 × 16,683,558.40
  4. Step 4: Simplify right side
    18,699,097.60x = 467,951,230,255,349.75
  5. Step 5: Solve for x
    x = 467,951,230,255,349.75/18,699,097.60
  6. Step 6: Final answer
    x = 25,025,337.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.