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Finding the Fourth Proportional to 5,668,839.60, 8,503,259.40 and 3,109,065.45

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Solution

The fourth proportional to 5,668,839.60, 8,503,259.40 and 3,109,065.45 is: 4,663,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,668,839.60 : 8,503,259.40 = 3,109,065.45 : x
  2. Step 2: Convert to fraction form
    5,668,839.60/8,503,259.40 = 3,109,065.45/x
  3. Step 3: Cross multiply
    5,668,839.60x = 8,503,259.40 × 3,109,065.45
  4. Step 4: Simplify right side
    5,668,839.60x = 26,437,190,012,927.73
  5. Step 5: Solve for x
    x = 26,437,190,012,927.73/5,668,839.60
  6. Step 6: Final answer
    x = 4,663,598.18

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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.