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Finding the Fourth Proportional to 8,317,897.80, 12,476,846.70 and 2,927,380.20

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Solution

The fourth proportional to 8,317,897.80, 12,476,846.70 and 2,927,380.20 is: 4,391,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317,897.80 : 12,476,846.70 = 2,927,380.20 : x
  2. Step 2: Convert to fraction form
    8,317,897.80/12,476,846.70 = 2,927,380.20/x
  3. Step 3: Cross multiply
    8,317,897.80x = 12,476,846.70 × 2,927,380.20
  4. Step 4: Simplify right side
    8,317,897.80x = 36,524,473,988,015.34
  5. Step 5: Solve for x
    x = 36,524,473,988,015.34/8,317,897.80
  6. Step 6: Final answer
    x = 4,391,070.30

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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.