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Finding the Fourth Proportional to 10,652,036.20, 15,978,054.30 and 8,880,566.20

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Solution

The fourth proportional to 10,652,036.20, 15,978,054.30 and 8,880,566.20 is: 13,320,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652,036.20 : 15,978,054.30 = 8,880,566.20 : x
  2. Step 2: Convert to fraction form
    10,652,036.20/15,978,054.30 = 8,880,566.20/x
  3. Step 3: Cross multiply
    10,652,036.20x = 15,978,054.30 × 8,880,566.20
  4. Step 4: Simplify right side
    10,652,036.20x = 141,894,168,958,344.66
  5. Step 5: Solve for x
    x = 141,894,168,958,344.66/10,652,036.20
  6. Step 6: Final answer
    x = 13,320,849.30

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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.