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Finding the Fourth Proportional to 64,885.94, 97,343.32 and 19,913.55

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Solution

The fourth proportional to 64,885.94, 97,343.32 and 19,913.55 is: 29,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.94 : 97,343.32 = 19,913.55 : x
  2. Step 2: Convert to fraction form
    64,885.94/97,343.32 = 19,913.55/x
  3. Step 3: Cross multiply
    64,885.94x = 97,343.32 × 19,913.55
  4. Step 4: Simplify right side
    64,885.94x = 1,938,451,069.99
  5. Step 5: Solve for x
    x = 1,938,451,069.99/64,885.94
  6. Step 6: Final answer
    x = 29,874.75

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1.5x scale

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.