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Finding the Fourth Proportional to 26,963,992.80, 40,445,989.20 and 25,704,280.80

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Solution

The fourth proportional to 26,963,992.80, 40,445,989.20 and 25,704,280.80 is: 38,556,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,963,992.80 : 40,445,989.20 = 25,704,280.80 : x
  2. Step 2: Convert to fraction form
    26,963,992.80/40,445,989.20 = 25,704,280.80/x
  3. Step 3: Cross multiply
    26,963,992.80x = 40,445,989.20 × 25,704,280.80
  4. Step 4: Simplify right side
    26,963,992.80x = 1,039,635,063,630,567.50
  5. Step 5: Solve for x
    x = 1,039,635,063,630,567.50/26,963,992.80
  6. Step 6: Final answer
    x = 38,556,421.20

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Double scale
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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.