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Finding the Fourth Proportional to 43,889,658.35, 65,786,969.03 and 28,547,911.67

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Solution

The fourth proportional to 43,889,658.35, 65,786,969.03 and 28,547,911.67 is: 42,790,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,889,658.35 : 65,786,969.03 = 28,547,911.67 : x
  2. Step 2: Convert to fraction form
    43,889,658.35/65,786,969.03 = 28,547,911.67/x
  3. Step 3: Cross multiply
    43,889,658.35x = 65,786,969.03 × 28,547,911.67
  4. Step 4: Simplify right side
    43,889,658.35x = 1,878,080,580,927,193.25
  5. Step 5: Solve for x
    x = 1,878,080,580,927,193.25/43,889,658.35
  6. Step 6: Final answer
    x = 42,790,959.22

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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.