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Finding the Fourth Proportional to 17,865,361.71, 26,800,699.77 and 8,281,709.01

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Solution

The fourth proportional to 17,865,361.71, 26,800,699.77 and 8,281,709.01 is: 12,423,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865,361.71 : 26,800,699.77 = 8,281,709.01 : x
  2. Step 2: Convert to fraction form
    17,865,361.71/26,800,699.77 = 8,281,709.01/x
  3. Step 3: Cross multiply
    17,865,361.71x = 26,800,699.77 × 8,281,709.01
  4. Step 4: Simplify right side
    17,865,361.71x = 221,955,596,759,513.91
  5. Step 5: Solve for x
    x = 221,955,596,759,513.91/17,865,361.71
  6. Step 6: Final answer
    x = 12,423,795.30

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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.