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Finding the Fourth Proportional to 13,908,047.10, 20,862,070.65 and 13,908,047.10

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Solution

The fourth proportional to 13,908,047.10, 20,862,070.65 and 13,908,047.10 is: 20,862,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908,047.10 : 20,862,070.65 = 13,908,047.10 : x
  2. Step 2: Convert to fraction form
    13,908,047.10/20,862,070.65 = 13,908,047.10/x
  3. Step 3: Cross multiply
    13,908,047.10x = 20,862,070.65 × 13,908,047.10
  4. Step 4: Simplify right side
    13,908,047.10x = 290,150,661,203,727.56
  5. Step 5: Solve for x
    x = 290,150,661,203,727.56/13,908,047.10
  6. Step 6: Final answer
    x = 20,862,070.65

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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.