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Finding the Fourth Proportional to 7,064,978.40, 10,598,974.20 and 4,033,796.40

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Solution

The fourth proportional to 7,064,978.40, 10,598,974.20 and 4,033,796.40 is: 6,051,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,064,978.40 : 10,598,974.20 = 4,033,796.40 : x
  2. Step 2: Convert to fraction form
    7,064,978.40/10,598,974.20 = 4,033,796.40/x
  3. Step 3: Cross multiply
    7,064,978.40x = 10,598,974.20 × 4,033,796.40
  4. Step 4: Simplify right side
    7,064,978.40x = 42,754,103,971,652.88
  5. Step 5: Solve for x
    x = 42,754,103,971,652.88/7,064,978.40
  6. Step 6: Final answer
    x = 6,051,554.80

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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.