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Finding the Fourth Proportional to 13,289,430.60, 19,906,152.30 and 13,289,430.60

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Solution

The fourth proportional to 13,289,430.60, 19,906,152.30 and 13,289,430.60 is: 19,906,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,430.60 : 19,906,152.30 = 13,289,430.60 : x
  2. Step 2: Convert to fraction form
    13,289,430.60/19,906,152.30 = 13,289,430.60/x
  3. Step 3: Cross multiply
    13,289,430.60x = 19,906,152.30 × 13,289,430.60
  4. Step 4: Simplify right side
    13,289,430.60x = 264,541,429,503,880.38
  5. Step 5: Solve for x
    x = 264,541,429,503,880.38/13,289,430.60
  6. Step 6: Final answer
    x = 19,906,152.30

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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.