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Finding the Fourth Proportional to 19,004,778.40, 28,507,167.60 and 19,004,778.40

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Solution

The fourth proportional to 19,004,778.40, 28,507,167.60 and 19,004,778.40 is: 28,507,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004,778.40 : 28,507,167.60 = 19,004,778.40 : x
  2. Step 2: Convert to fraction form
    19,004,778.40/28,507,167.60 = 19,004,778.40/x
  3. Step 3: Cross multiply
    19,004,778.40x = 28,507,167.60 × 19,004,778.40
  4. Step 4: Simplify right side
    19,004,778.40x = 541,772,403,049,659.81
  5. Step 5: Solve for x
    x = 541,772,403,049,659.81/19,004,778.40
  6. Step 6: Final answer
    x = 28,507,167.60

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Similar ratio
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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.