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Finding the Fourth Proportional to 25,470,657.80, 38,205,986.70 and 25,470,657.80

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Solution

The fourth proportional to 25,470,657.80, 38,205,986.70 and 25,470,657.80 is: 38,205,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470,657.80 : 38,205,986.70 = 25,470,657.80 : x
  2. Step 2: Convert to fraction form
    25,470,657.80/38,205,986.70 = 25,470,657.80/x
  3. Step 3: Cross multiply
    25,470,657.80x = 38,205,986.70 × 25,470,657.80
  4. Step 4: Simplify right side
    25,470,657.80x = 973,131,613,147,051.38
  5. Step 5: Solve for x
    x = 973,131,613,147,051.38/25,470,657.80
  6. Step 6: Final answer
    x = 38,205,986.70

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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.