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Finding the Fourth Proportional to 17,227,985.40, 25,841,978.10 and 7,644,332.70

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Solution

The fourth proportional to 17,227,985.40, 25,841,978.10 and 7,644,332.70 is: 11,466,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,227,985.40 : 25,841,978.10 = 7,644,332.70 : x
  2. Step 2: Convert to fraction form
    17,227,985.40/25,841,978.10 = 7,644,332.70/x
  3. Step 3: Cross multiply
    17,227,985.40x = 25,841,978.10 × 7,644,332.70
  4. Step 4: Simplify right side
    17,227,985.40x = 197,544,678,222,513.88
  5. Step 5: Solve for x
    x = 197,544,678,222,513.88/17,227,985.40
  6. Step 6: Final answer
    x = 11,466,499.05

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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.