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Finding the Fourth Proportional to 18,382,502.40, 27,573,753.60 and 5,602,986.60

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Solution

The fourth proportional to 18,382,502.40, 27,573,753.60 and 5,602,986.60 is: 8,404,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382,502.40 : 27,573,753.60 = 5,602,986.60 : x
  2. Step 2: Convert to fraction form
    18,382,502.40/27,573,753.60 = 5,602,986.60/x
  3. Step 3: Cross multiply
    18,382,502.40x = 27,573,753.60 × 5,602,986.60
  4. Step 4: Simplify right side
    18,382,502.40x = 154,495,371,932,501.75
  5. Step 5: Solve for x
    x = 154,495,371,932,501.75/18,382,502.40
  6. Step 6: Final answer
    x = 8,404,479.90

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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.