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Finding the Fourth Proportional to 6,912,079.40, 10,368,119.10 and 6,912,079.40

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Solution

The fourth proportional to 6,912,079.40, 10,368,119.10 and 6,912,079.40 is: 10,368,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,079.40 : 10,368,119.10 = 6,912,079.40 : x
  2. Step 2: Convert to fraction form
    6,912,079.40/10,368,119.10 = 6,912,079.40/x
  3. Step 3: Cross multiply
    6,912,079.40x = 10,368,119.10 × 6,912,079.40
  4. Step 4: Simplify right side
    6,912,079.40x = 71,665,262,447,856.55
  5. Step 5: Solve for x
    x = 71,665,262,447,856.55/6,912,079.40
  6. Step 6: Final answer
    x = 10,368,119.10

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1.5x scale

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.