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Finding the Fourth Proportional to 27,889,703.70, 41,834,555.55 and 19,758,656.40

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Solution

The fourth proportional to 27,889,703.70, 41,834,555.55 and 19,758,656.40 is: 29,637,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889,703.70 : 41,834,555.55 = 19,758,656.40 : x
  2. Step 2: Convert to fraction form
    27,889,703.70/41,834,555.55 = 19,758,656.40/x
  3. Step 3: Cross multiply
    27,889,703.70x = 41,834,555.55 × 19,758,656.40
  4. Step 4: Simplify right side
    27,889,703.70x = 826,594,608,759,162.88
  5. Step 5: Solve for x
    x = 826,594,608,759,162.88/27,889,703.70
  6. Step 6: Final answer
    x = 29,637,984.60

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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.