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Finding the Fourth Proportional to 10,132,642.50, 13,978,915.65 and 5,999,601.30

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Solution

The fourth proportional to 10,132,642.50, 13,978,915.65 and 5,999,601.30 is: 8,277,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132,642.50 : 13,978,915.65 = 5,999,601.30 : x
  2. Step 2: Convert to fraction form
    10,132,642.50/13,978,915.65 = 5,999,601.30/x
  3. Step 3: Cross multiply
    10,132,642.50x = 13,978,915.65 × 5,999,601.30
  4. Step 4: Simplify right side
    10,132,642.50x = 83,867,920,506,330.34
  5. Step 5: Solve for x
    x = 83,867,920,506,330.34/10,132,642.50
  6. Step 6: Final answer
    x = 8,277,003.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.