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Finding the Fourth Proportional to 12,878,029,529.60, 19,317,044,294.40 and 12,878,029,529.60

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Solution

The fourth proportional to 12,878,029,529.60, 19,317,044,294.40 and 12,878,029,529.60 is: 19,317,044,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,029,529.60 : 19,317,044,294.40 = 12,878,029,529.60 : x
  2. Step 2: Convert to fraction form
    12,878,029,529.60/19,317,044,294.40 = 12,878,029,529.60/x
  3. Step 3: Cross multiply
    12,878,029,529.60x = 19,317,044,294.40 × 12,878,029,529.60
  4. Step 4: Simplify right side
    12,878,029,529.60x = 248,765,466,847,874,416,640
  5. Step 5: Solve for x
    x = 248,765,466,847,874,416,640/12,878,029,529.60
  6. Step 6: Final answer
    x = 19,317,044,294.40

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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.