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Finding the Fourth Proportional to 17,714,971.70, 26,572,457.55 and 13,431,950.90

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Solution

The fourth proportional to 17,714,971.70, 26,572,457.55 and 13,431,950.90 is: 20,147,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,714,971.70 : 26,572,457.55 = 13,431,950.90 : x
  2. Step 2: Convert to fraction form
    17,714,971.70/26,572,457.55 = 13,431,950.90/x
  3. Step 3: Cross multiply
    17,714,971.70x = 26,572,457.55 × 13,431,950.90
  4. Step 4: Simplify right side
    17,714,971.70x = 356,919,945,103,934.31
  5. Step 5: Solve for x
    x = 356,919,945,103,934.31/17,714,971.70
  6. Step 6: Final answer
    x = 20,147,926.35

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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.