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Finding the Fourth Proportional to 53,282,606.60, 79,923,909.90 and 12,893,090.60

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Solution

The fourth proportional to 53,282,606.60, 79,923,909.90 and 12,893,090.60 is: 19,339,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,282,606.60 : 79,923,909.90 = 12,893,090.60 : x
  2. Step 2: Convert to fraction form
    53,282,606.60/79,923,909.90 = 12,893,090.60/x
  3. Step 3: Cross multiply
    53,282,606.60x = 79,923,909.90 × 12,893,090.60
  4. Step 4: Simplify right side
    53,282,606.60x = 1,030,466,211,446,937
  5. Step 5: Solve for x
    x = 1,030,466,211,446,937/53,282,606.60
  6. Step 6: Final answer
    x = 19,339,635.90

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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.