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Finding the Fourth Proportional to 40,451,999.80, 60,677,999.70 and 13,525,655.80

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Solution

The fourth proportional to 40,451,999.80, 60,677,999.70 and 13,525,655.80 is: 20,288,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,451,999.80 : 60,677,999.70 = 13,525,655.80 : x
  2. Step 2: Convert to fraction form
    40,451,999.80/60,677,999.70 = 13,525,655.80/x
  3. Step 3: Cross multiply
    40,451,999.80x = 60,677,999.70 × 13,525,655.80
  4. Step 4: Simplify right side
    40,451,999.80x = 820,709,738,574,703.38
  5. Step 5: Solve for x
    x = 820,709,738,574,703.38/40,451,999.80
  6. Step 6: Final answer
    x = 20,288,483.70

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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.