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Finding the Fourth Proportional to 34,965,145.80, 52,447,718.70 and 21,360,256.20

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Solution

The fourth proportional to 34,965,145.80, 52,447,718.70 and 21,360,256.20 is: 32,040,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,965,145.80 : 52,447,718.70 = 21,360,256.20 : x
  2. Step 2: Convert to fraction form
    34,965,145.80/52,447,718.70 = 21,360,256.20/x
  3. Step 3: Cross multiply
    34,965,145.80x = 52,447,718.70 × 21,360,256.20
  4. Step 4: Simplify right side
    34,965,145.80x = 1,120,296,708,537,531
  5. Step 5: Solve for x
    x = 1,120,296,708,537,531/34,965,145.80
  6. Step 6: Final answer
    x = 32,040,384.30

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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.