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Finding the Fourth Proportional to 10,752,409.80, 16,128,614.70 and 9,893,939.40

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Solution

The fourth proportional to 10,752,409.80, 16,128,614.70 and 9,893,939.40 is: 14,840,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752,409.80 : 16,128,614.70 = 9,893,939.40 : x
  2. Step 2: Convert to fraction form
    10,752,409.80/16,128,614.70 = 9,893,939.40/x
  3. Step 3: Cross multiply
    10,752,409.80x = 16,128,614.70 × 9,893,939.40
  4. Step 4: Simplify right side
    10,752,409.80x = 159,575,536,447,749.19
  5. Step 5: Solve for x
    x = 159,575,536,447,749.19/10,752,409.80
  6. Step 6: Final answer
    x = 14,840,909.10

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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.