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Finding the Fourth Proportional to 60,661,657.80, 90,992,486.70 and 37,703,406.60

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Solution

The fourth proportional to 60,661,657.80, 90,992,486.70 and 37,703,406.60 is: 56,555,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,661,657.80 : 90,992,486.70 = 37,703,406.60 : x
  2. Step 2: Convert to fraction form
    60,661,657.80/90,992,486.70 = 37,703,406.60/x
  3. Step 3: Cross multiply
    60,661,657.80x = 90,992,486.70 × 37,703,406.60
  4. Step 4: Simplify right side
    60,661,657.80x = 3,430,726,723,595,192.50
  5. Step 5: Solve for x
    x = 3,430,726,723,595,192.50/60,661,657.80
  6. Step 6: Final answer
    x = 56,555,109.90

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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.