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Finding the Fourth Proportional to 18,619,635.06, 25,692,068.55 and 10,359,485.10

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Solution

The fourth proportional to 18,619,635.06, 25,692,068.55 and 10,359,485.10 is: 14,294,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619,635.06 : 25,692,068.55 = 10,359,485.10 : x
  2. Step 2: Convert to fraction form
    18,619,635.06/25,692,068.55 = 10,359,485.10/x
  3. Step 3: Cross multiply
    18,619,635.06x = 25,692,068.55 × 10,359,485.10
  4. Step 4: Simplify right side
    18,619,635.06x = 266,156,601,331,903.59
  5. Step 5: Solve for x
    x = 266,156,601,331,903.59/18,619,635.06
  6. Step 6: Final answer
    x = 14,294,404.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.