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Finding the Fourth Proportional to 11,478,615.60, 17,217,923.40 and 11,478,615.60

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Solution

The fourth proportional to 11,478,615.60, 17,217,923.40 and 11,478,615.60 is: 17,217,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478,615.60 : 17,217,923.40 = 11,478,615.60 : x
  2. Step 2: Convert to fraction form
    11,478,615.60/17,217,923.40 = 11,478,615.60/x
  3. Step 3: Cross multiply
    11,478,615.60x = 17,217,923.40 × 11,478,615.60
  4. Step 4: Simplify right side
    11,478,615.60x = 197,637,924,138,845.03
  5. Step 5: Solve for x
    x = 197,637,924,138,845.03/11,478,615.60
  6. Step 6: Final answer
    x = 17,217,923.40

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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.