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Finding the Fourth Proportional to 21,182,666.40, 31,773,999.60 and 21,182,666.40

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Solution

The fourth proportional to 21,182,666.40, 31,773,999.60 and 21,182,666.40 is: 31,773,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182,666.40 : 31,773,999.60 = 21,182,666.40 : x
  2. Step 2: Convert to fraction form
    21,182,666.40/31,773,999.60 = 21,182,666.40/x
  3. Step 3: Cross multiply
    21,182,666.40x = 31,773,999.60 × 21,182,666.40
  4. Step 4: Simplify right side
    21,182,666.40x = 673,058,033,720,533.38
  5. Step 5: Solve for x
    x = 673,058,033,720,533.38/21,182,666.40
  6. Step 6: Final answer
    x = 31,773,999.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.