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Finding the Fourth Proportional to 19,152,130.40, 28,728,195.60 and 19,152,130.40

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Solution

The fourth proportional to 19,152,130.40, 28,728,195.60 and 19,152,130.40 is: 28,728,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,130.40 : 28,728,195.60 = 19,152,130.40 : x
  2. Step 2: Convert to fraction form
    19,152,130.40/28,728,195.60 = 19,152,130.40/x
  3. Step 3: Cross multiply
    19,152,130.40x = 28,728,195.60 × 19,152,130.40
  4. Step 4: Simplify right side
    19,152,130.40x = 550,206,148,287,906.25
  5. Step 5: Solve for x
    x = 550,206,148,287,906.25/19,152,130.40
  6. Step 6: Final answer
    x = 28,728,195.60

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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.