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Finding the Fourth Proportional to 20,465,998.65, 30,698,998.08 and 20,465,998.65

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Solution

The fourth proportional to 20,465,998.65, 30,698,998.08 and 20,465,998.65 is: 30,698,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465,998.65 : 30,698,998.08 = 20,465,998.65 : x
  2. Step 2: Convert to fraction form
    20,465,998.65/30,698,998.08 = 20,465,998.65/x
  3. Step 3: Cross multiply
    20,465,998.65x = 30,698,998.08 × 20,465,998.65
  4. Step 4: Simplify right side
    20,465,998.65x = 628,285,653,184,885.12
  5. Step 5: Solve for x
    x = 628,285,653,184,885.12/20,465,998.65
  6. Step 6: Final answer
    x = 30,698,998.08

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1.5x scale

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.