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Finding the Fourth Proportional to 9,072,764.16, 12,520,028.16 and 5,202,597.12

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Solution

The fourth proportional to 9,072,764.16, 12,520,028.16 and 5,202,597.12 is: 7,179,362.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,764.16 : 12,520,028.16 = 5,202,597.12 : x
  2. Step 2: Convert to fraction form
    9,072,764.16/12,520,028.16 = 5,202,597.12/x
  3. Step 3: Cross multiply
    9,072,764.16x = 12,520,028.16 × 5,202,597.12
  4. Step 4: Simplify right side
    9,072,764.16x = 65,136,662,447,534.90
  5. Step 5: Solve for x
    x = 65,136,662,447,534.90/9,072,764.16
  6. Step 6: Final answer
    x = 7,179,362.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.