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Finding the Fourth Proportional to 7,768,266.80, 11,652,400.20 and 4,940,913.20

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Solution

The fourth proportional to 7,768,266.80, 11,652,400.20 and 4,940,913.20 is: 7,411,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768,266.80 : 11,652,400.20 = 4,940,913.20 : x
  2. Step 2: Convert to fraction form
    7,768,266.80/11,652,400.20 = 4,940,913.20/x
  3. Step 3: Cross multiply
    7,768,266.80x = 11,652,400.20 × 4,940,913.20
  4. Step 4: Simplify right side
    7,768,266.80x = 57,573,497,959,862.64
  5. Step 5: Solve for x
    x = 57,573,497,959,862.64/7,768,266.80
  6. Step 6: Final answer
    x = 7,411,369.80

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1.5x scale

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.