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Finding the Fourth Proportional to 10,091,897.60, 15,137,846.40 and 10,091,897.60

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Solution

The fourth proportional to 10,091,897.60, 15,137,846.40 and 10,091,897.60 is: 15,137,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091,897.60 : 15,137,846.40 = 10,091,897.60 : x
  2. Step 2: Convert to fraction form
    10,091,897.60/15,137,846.40 = 10,091,897.60/x
  3. Step 3: Cross multiply
    10,091,897.60x = 15,137,846.40 × 10,091,897.60
  4. Step 4: Simplify right side
    10,091,897.60x = 152,769,595,753,328.62
  5. Step 5: Solve for x
    x = 152,769,595,753,328.62/10,091,897.60
  6. Step 6: Final answer
    x = 15,137,846.40

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Double scale
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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.