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Finding the Fourth Proportional to 53,892,043.80, 80,838,065.70 and 15,554,808.60

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Solution

The fourth proportional to 53,892,043.80, 80,838,065.70 and 15,554,808.60 is: 23,332,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,892,043.80 : 80,838,065.70 = 15,554,808.60 : x
  2. Step 2: Convert to fraction form
    53,892,043.80/80,838,065.70 = 15,554,808.60/x
  3. Step 3: Cross multiply
    53,892,043.80x = 80,838,065.70 × 15,554,808.60
  4. Step 4: Simplify right side
    53,892,043.80x = 1,257,420,639,557,725
  5. Step 5: Solve for x
    x = 1,257,420,639,557,725/53,892,043.80
  6. Step 6: Final answer
    x = 23,332,212.90

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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.