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Finding the Fourth Proportional to 6,548,878.67, 8,971,995.80 and 6,303,428.45

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Solution

The fourth proportional to 6,548,878.67, 8,971,995.80 and 6,303,428.45 is: 8,635,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,548,878.67 : 8,971,995.80 = 6,303,428.45 : x
  2. Step 2: Convert to fraction form
    6,548,878.67/8,971,995.80 = 6,303,428.45/x
  3. Step 3: Cross multiply
    6,548,878.67x = 8,971,995.80 × 6,303,428.45
  4. Step 4: Simplify right side
    6,548,878.67x = 56,554,333,502,623.39
  5. Step 5: Solve for x
    x = 56,554,333,502,623.39/6,548,878.67
  6. Step 6: Final answer
    x = 8,635,727.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.