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Finding the Fourth Proportional to 5,865,899.60, 8,798,849.40 and 5,156,728.40

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Solution

The fourth proportional to 5,865,899.60, 8,798,849.40 and 5,156,728.40 is: 7,735,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865,899.60 : 8,798,849.40 = 5,156,728.40 : x
  2. Step 2: Convert to fraction form
    5,865,899.60/8,798,849.40 = 5,156,728.40/x
  3. Step 3: Cross multiply
    5,865,899.60x = 8,798,849.40 × 5,156,728.40
  4. Step 4: Simplify right side
    5,865,899.60x = 45,373,276,588,302.97
  5. Step 5: Solve for x
    x = 45,373,276,588,302.97/5,865,899.60
  6. Step 6: Final answer
    x = 7,735,092.60

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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.