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Finding the Fourth Proportional to 56,592,824.80, 84,889,237.20 and 20,218,640.80

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Solution

The fourth proportional to 56,592,824.80, 84,889,237.20 and 20,218,640.80 is: 30,327,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,592,824.80 : 84,889,237.20 = 20,218,640.80 : x
  2. Step 2: Convert to fraction form
    56,592,824.80/84,889,237.20 = 20,218,640.80/x
  3. Step 3: Cross multiply
    56,592,824.80x = 84,889,237.20 × 20,218,640.80
  4. Step 4: Simplify right side
    56,592,824.80x = 1,716,344,994,732,798
  5. Step 5: Solve for x
    x = 1,716,344,994,732,798/56,592,824.80
  6. Step 6: Final answer
    x = 30,327,961.20

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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.