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Finding the Fourth Proportional to 13,070,334.80, 18,317,364.40 and 13,070,334.80

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Solution

The fourth proportional to 13,070,334.80, 18,317,364.40 and 13,070,334.80 is: 18,317,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070,334.80 : 18,317,364.40 = 13,070,334.80 : x
  2. Step 2: Convert to fraction form
    13,070,334.80/18,317,364.40 = 13,070,334.80/x
  3. Step 3: Cross multiply
    13,070,334.80x = 18,317,364.40 × 13,070,334.80
  4. Step 4: Simplify right side
    13,070,334.80x = 239,414,085,361,601.12
  5. Step 5: Solve for x
    x = 239,414,085,361,601.12/13,070,334.80
  6. Step 6: Final answer
    x = 18,317,364.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.