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Finding the Fourth Proportional to 20,391,153,722.55, 30,586,730,583.83 and 20,391,153,722.55

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Solution

The fourth proportional to 20,391,153,722.55, 30,586,730,583.83 and 20,391,153,722.55 is: 30,586,730,583.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,153,722.55 : 30,586,730,583.83 = 20,391,153,722.55 : x
  2. Step 2: Convert to fraction form
    20,391,153,722.55/30,586,730,583.83 = 20,391,153,722.55/x
  3. Step 3: Cross multiply
    20,391,153,722.55x = 30,586,730,583.83 × 20,391,153,722.55
  4. Step 4: Simplify right side
    20,391,153,722.55x = 623,698,725,204,997,046,272
  5. Step 5: Solve for x
    x = 623,698,725,204,997,046,272/20,391,153,722.55
  6. Step 6: Final answer
    x = 30,586,730,583.83

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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.