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Finding the Fourth Proportional to 17,671,432.60, 26,507,148.90 and 13,136,469.40

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Solution

The fourth proportional to 17,671,432.60, 26,507,148.90 and 13,136,469.40 is: 19,704,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671,432.60 : 26,507,148.90 = 13,136,469.40 : x
  2. Step 2: Convert to fraction form
    17,671,432.60/26,507,148.90 = 13,136,469.40/x
  3. Step 3: Cross multiply
    17,671,432.60x = 26,507,148.90 × 13,136,469.40
  4. Step 4: Simplify right side
    17,671,432.60x = 348,210,350,406,093.62
  5. Step 5: Solve for x
    x = 348,210,350,406,093.62/17,671,432.60
  6. Step 6: Final answer
    x = 19,704,704.10

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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.