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Finding the Fourth Proportional to 18,723,132,458.60, 28,084,698,687.90 and 18,723,132,458.60

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Solution

The fourth proportional to 18,723,132,458.60, 28,084,698,687.90 and 18,723,132,458.60 is: 28,084,698,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,132,458.60 : 28,084,698,687.90 = 18,723,132,458.60 : x
  2. Step 2: Convert to fraction form
    18,723,132,458.60/28,084,698,687.90 = 18,723,132,458.60/x
  3. Step 3: Cross multiply
    18,723,132,458.60x = 28,084,698,687.90 × 18,723,132,458.60
  4. Step 4: Simplify right side
    18,723,132,458.60x = 525,833,533,593,421,283,328
  5. Step 5: Solve for x
    x = 525,833,533,593,421,283,328/18,723,132,458.60
  6. Step 6: Final answer
    x = 28,084,698,687.90

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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.