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Finding the Fourth Proportional to 13,480,329.30, 20,220,493.95 and 13,480,329.30

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Solution

The fourth proportional to 13,480,329.30, 20,220,493.95 and 13,480,329.30 is: 20,220,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,329.30 : 20,220,493.95 = 13,480,329.30 : x
  2. Step 2: Convert to fraction form
    13,480,329.30/20,220,493.95 = 13,480,329.30/x
  3. Step 3: Cross multiply
    13,480,329.30x = 20,220,493.95 × 13,480,329.30
  4. Step 4: Simplify right side
    13,480,329.30x = 272,578,917,054,657.75
  5. Step 5: Solve for x
    x = 272,578,917,054,657.75/13,480,329.30
  6. Step 6: Final answer
    x = 20,220,493.95

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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.