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Finding the Fourth Proportional to 9,793,603.20, 14,690,404.80 and 9,420,355.20

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Solution

The fourth proportional to 9,793,603.20, 14,690,404.80 and 9,420,355.20 is: 14,130,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,793,603.20 : 14,690,404.80 = 9,420,355.20 : x
  2. Step 2: Convert to fraction form
    9,793,603.20/14,690,404.80 = 9,420,355.20/x
  3. Step 3: Cross multiply
    9,793,603.20x = 14,690,404.80 × 9,420,355.20
  4. Step 4: Simplify right side
    9,793,603.20x = 138,388,831,247,784.95
  5. Step 5: Solve for x
    x = 138,388,831,247,784.95/9,793,603.20
  6. Step 6: Final answer
    x = 14,130,532.80

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Similar ratio
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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.