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Finding the Fourth Proportional to 14,689,987.80, 22,034,981.70 and 11,330,755.80

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Solution

The fourth proportional to 14,689,987.80, 22,034,981.70 and 11,330,755.80 is: 16,996,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689,987.80 : 22,034,981.70 = 11,330,755.80 : x
  2. Step 2: Convert to fraction form
    14,689,987.80/22,034,981.70 = 11,330,755.80/x
  3. Step 3: Cross multiply
    14,689,987.80x = 22,034,981.70 × 11,330,755.80
  4. Step 4: Simplify right side
    14,689,987.80x = 249,672,996,700,168.88
  5. Step 5: Solve for x
    x = 249,672,996,700,168.88/14,689,987.80
  6. Step 6: Final answer
    x = 16,996,133.70

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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.