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Finding the Fourth Proportional to 16,789,425.60, 25,171,696.80 and 11,384,587.20

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Solution

The fourth proportional to 16,789,425.60, 25,171,696.80 and 11,384,587.20 is: 17,068,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,789,425.60 : 25,171,696.80 = 11,384,587.20 : x
  2. Step 2: Convert to fraction form
    16,789,425.60/25,171,696.80 = 11,384,587.20/x
  3. Step 3: Cross multiply
    16,789,425.60x = 25,171,696.80 × 11,384,587.20
  4. Step 4: Simplify right side
    16,789,425.60x = 286,569,377,191,560.94
  5. Step 5: Solve for x
    x = 286,569,377,191,560.94/16,789,425.60
  6. Step 6: Final answer
    x = 17,068,444.39

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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.