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Finding the Fourth Proportional to 19,938,652.40, 29,907,978.60 and 19,938,652.40

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Solution

The fourth proportional to 19,938,652.40, 29,907,978.60 and 19,938,652.40 is: 29,907,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938,652.40 : 29,907,978.60 = 19,938,652.40 : x
  2. Step 2: Convert to fraction form
    19,938,652.40/29,907,978.60 = 19,938,652.40/x
  3. Step 3: Cross multiply
    19,938,652.40x = 29,907,978.60 × 19,938,652.40
  4. Step 4: Simplify right side
    19,938,652.40x = 596,324,789,292,038.62
  5. Step 5: Solve for x
    x = 596,324,789,292,038.62/19,938,652.40
  6. Step 6: Final answer
    x = 29,907,978.60

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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.