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Finding the Fourth Proportional to 27,324,045.40, 40,986,068.10 and 7,129,287.40

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Solution

The fourth proportional to 27,324,045.40, 40,986,068.10 and 7,129,287.40 is: 10,693,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,324,045.40 : 40,986,068.10 = 7,129,287.40 : x
  2. Step 2: Convert to fraction form
    27,324,045.40/40,986,068.10 = 7,129,287.40/x
  3. Step 3: Cross multiply
    27,324,045.40x = 40,986,068.10 × 7,129,287.40
  4. Step 4: Simplify right side
    27,324,045.40x = 292,201,458,880,871.94
  5. Step 5: Solve for x
    x = 292,201,458,880,871.94/27,324,045.40
  6. Step 6: Final answer
    x = 10,693,931.10

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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.