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Finding the Fourth Proportional to 27,889,700.70, 41,834,551.05 and 19,758,653.40

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Solution

The fourth proportional to 27,889,700.70, 41,834,551.05 and 19,758,653.40 is: 29,637,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889,700.70 : 41,834,551.05 = 19,758,653.40 : x
  2. Step 2: Convert to fraction form
    27,889,700.70/41,834,551.05 = 19,758,653.40/x
  3. Step 3: Cross multiply
    27,889,700.70x = 41,834,551.05 × 19,758,653.40
  4. Step 4: Simplify right side
    27,889,700.70x = 826,594,394,341,556
  5. Step 5: Solve for x
    x = 826,594,394,341,556/27,889,700.70
  6. Step 6: Final answer
    x = 29,637,980.10

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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.