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Finding the Fourth Proportional to 10,661,392.17, 15,992,075.84 and 3,472,914.47

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Solution

The fourth proportional to 10,661,392.17, 15,992,075.84 and 3,472,914.47 is: 5,209,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661,392.17 : 15,992,075.84 = 3,472,914.47 : x
  2. Step 2: Convert to fraction form
    10,661,392.17/15,992,075.84 = 3,472,914.47/x
  3. Step 3: Cross multiply
    10,661,392.17x = 15,992,075.84 × 3,472,914.47
  4. Step 4: Simplify right side
    10,661,392.17x = 55,539,111,492,748.45
  5. Step 5: Solve for x
    x = 55,539,111,492,748.45/10,661,392.17
  6. Step 6: Final answer
    x = 5,209,367.65

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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.