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Finding the Fourth Proportional to 25,561,656,391.80, 38,342,484,587.70 and 25,561,656,391.80

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Solution

The fourth proportional to 25,561,656,391.80, 38,342,484,587.70 and 25,561,656,391.80 is: 38,342,484,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,561,656,391.80 : 38,342,484,587.70 = 25,561,656,391.80 : x
  2. Step 2: Convert to fraction form
    25,561,656,391.80/38,342,484,587.70 = 25,561,656,391.80/x
  3. Step 3: Cross multiply
    25,561,656,391.80x = 38,342,484,587.70 × 25,561,656,391.80
  4. Step 4: Simplify right side
    25,561,656,391.80x = 980,097,416,238,674,608,128
  5. Step 5: Solve for x
    x = 980,097,416,238,674,608,128/25,561,656,391.80
  6. Step 6: Final answer
    x = 38,342,484,587.70

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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.