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Finding the Fourth Proportional to 13,693,223.04, 18,897,238.04 and 7,581,651.52

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Solution

The fourth proportional to 13,693,223.04, 18,897,238.04 and 7,581,651.52 is: 10,463,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693,223.04 : 18,897,238.04 = 7,581,651.52 : x
  2. Step 2: Convert to fraction form
    13,693,223.04/18,897,238.04 = 7,581,651.52/x
  3. Step 3: Cross multiply
    13,693,223.04x = 18,897,238.04 × 7,581,651.52
  4. Step 4: Simplify right side
    13,693,223.04x = 143,272,273,509,767.81
  5. Step 5: Solve for x
    x = 143,272,273,509,767.81/13,693,223.04
  6. Step 6: Final answer
    x = 10,463,005.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.