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Finding the Fourth Proportional to 16,642,780.80, 23,331,350.40 and 16,642,780.80

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Solution

The fourth proportional to 16,642,780.80, 23,331,350.40 and 16,642,780.80 is: 23,331,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642,780.80 : 23,331,350.40 = 16,642,780.80 : x
  2. Step 2: Convert to fraction form
    16,642,780.80/23,331,350.40 = 16,642,780.80/x
  3. Step 3: Cross multiply
    16,642,780.80x = 23,331,350.40 × 16,642,780.80
  4. Step 4: Simplify right side
    16,642,780.80x = 388,298,550,475,192.31
  5. Step 5: Solve for x
    x = 388,298,550,475,192.31/16,642,780.80
  6. Step 6: Final answer
    x = 23,331,350.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.