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Finding the Fourth Proportional to 18,932,353.04, 28,369,632.04 and 11,240,851.76

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Solution

The fourth proportional to 18,932,353.04, 28,369,632.04 and 11,240,851.76 is: 16,844,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932,353.04 : 28,369,632.04 = 11,240,851.76 : x
  2. Step 2: Convert to fraction form
    18,932,353.04/28,369,632.04 = 11,240,851.76/x
  3. Step 3: Cross multiply
    18,932,353.04x = 28,369,632.04 × 11,240,851.76
  4. Step 4: Simplify right side
    18,932,353.04x = 318,898,828,247,386.38
  5. Step 5: Solve for x
    x = 318,898,828,247,386.38/18,932,353.04
  6. Step 6: Final answer
    x = 16,844,120.09

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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.