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Finding the Fourth Proportional to 19,045.07, 28,526.00 and 7,918.04

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Solution

The fourth proportional to 19,045.07, 28,526.00 and 7,918.04 is: 11,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.07 : 28,526.00 = 7,918.04 : x
  2. Step 2: Convert to fraction form
    19,045.07/28,526.00 = 7,918.04/x
  3. Step 3: Cross multiply
    19,045.07x = 28,526.00 × 7,918.04
  4. Step 4: Simplify right side
    19,045.07x = 225,869,826.82
  5. Step 5: Solve for x
    x = 225,869,826.82/19,045.07
  6. Step 6: Final answer
    x = 11,859.76

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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.