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Finding the Fourth Proportional to 7,700,647.74, 10,627,019.46 and 4,215,928.14

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Solution

The fourth proportional to 7,700,647.74, 10,627,019.46 and 4,215,928.14 is: 5,818,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700,647.74 : 10,627,019.46 = 4,215,928.14 : x
  2. Step 2: Convert to fraction form
    7,700,647.74/10,627,019.46 = 4,215,928.14/x
  3. Step 3: Cross multiply
    7,700,647.74x = 10,627,019.46 × 4,215,928.14
  4. Step 4: Simplify right side
    7,700,647.74x = 44,802,750,385,741.60
  5. Step 5: Solve for x
    x = 44,802,750,385,741.60/7,700,647.74
  6. Step 6: Final answer
    x = 5,818,049.58

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1.5x scale

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.