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Finding the Fourth Proportional to 65,023,503.12, 97,466,978.88 and 21,877,728.48

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Solution

The fourth proportional to 65,023,503.12, 97,466,978.88 and 21,877,728.48 is: 32,793,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,023,503.12 : 97,466,978.88 = 21,877,728.48 : x
  2. Step 2: Convert to fraction form
    65,023,503.12/97,466,978.88 = 21,877,728.48/x
  3. Step 3: Cross multiply
    65,023,503.12x = 97,466,978.88 × 21,877,728.48
  4. Step 4: Simplify right side
    65,023,503.12x = 2,132,356,099,702,534.50
  5. Step 5: Solve for x
    x = 2,132,356,099,702,534.50/65,023,503.12
  6. Step 6: Final answer
    x = 32,793,620.73

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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.