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Finding the Fourth Proportional to 6,603,820.40, 9,889,984.20 and 6,603,820.40

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Solution

The fourth proportional to 6,603,820.40, 9,889,984.20 and 6,603,820.40 is: 9,889,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,820.40 : 9,889,984.20 = 6,603,820.40 : x
  2. Step 2: Convert to fraction form
    6,603,820.40/9,889,984.20 = 6,603,820.40/x
  3. Step 3: Cross multiply
    6,603,820.40x = 9,889,984.20 × 6,603,820.40
  4. Step 4: Simplify right side
    6,603,820.40x = 65,311,679,415,637.68
  5. Step 5: Solve for x
    x = 65,311,679,415,637.68/6,603,820.40
  6. Step 6: Final answer
    x = 9,889,984.20

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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.