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Finding the Fourth Proportional to 16,607,996.80, 24,911,995.20 and 12,356,468.80

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Solution

The fourth proportional to 16,607,996.80, 24,911,995.20 and 12,356,468.80 is: 18,534,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607,996.80 : 24,911,995.20 = 12,356,468.80 : x
  2. Step 2: Convert to fraction form
    16,607,996.80/24,911,995.20 = 12,356,468.80/x
  3. Step 3: Cross multiply
    16,607,996.80x = 24,911,995.20 × 12,356,468.80
  4. Step 4: Simplify right side
    16,607,996.80x = 307,824,291,434,549.75
  5. Step 5: Solve for x
    x = 307,824,291,434,549.75/16,607,996.80
  6. Step 6: Final answer
    x = 18,534,703.20

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Similar ratio
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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.