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Finding the Fourth Proportional to 15,673,834.60, 23,510,751.90 and 12,445,330.53

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Solution

The fourth proportional to 15,673,834.60, 23,510,751.90 and 12,445,330.53 is: 18,667,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673,834.60 : 23,510,751.90 = 12,445,330.53 : x
  2. Step 2: Convert to fraction form
    15,673,834.60/23,510,751.90 = 12,445,330.53/x
  3. Step 3: Cross multiply
    15,673,834.60x = 23,510,751.90 × 12,445,330.53
  4. Step 4: Simplify right side
    15,673,834.60x = 292,599,078,404,325.50
  5. Step 5: Solve for x
    x = 292,599,078,404,325.50/15,673,834.60
  6. Step 6: Final answer
    x = 18,667,995.80

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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.