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Finding the Fourth Proportional to 8,731,713.80, 13,097,570.70 and 7,472,001.80

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Solution

The fourth proportional to 8,731,713.80, 13,097,570.70 and 7,472,001.80 is: 11,208,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731,713.80 : 13,097,570.70 = 7,472,001.80 : x
  2. Step 2: Convert to fraction form
    8,731,713.80/13,097,570.70 = 7,472,001.80/x
  3. Step 3: Cross multiply
    8,731,713.80x = 13,097,570.70 × 7,472,001.80
  4. Step 4: Simplify right side
    8,731,713.80x = 97,865,071,846,027.25
  5. Step 5: Solve for x
    x = 97,865,071,846,027.25/8,731,713.80
  6. Step 6: Final answer
    x = 11,208,002.70

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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.