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Finding the Fourth Proportional to 64,892.68, 97,349.73 and 19,912.93

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Solution

The fourth proportional to 64,892.68, 97,349.73 and 19,912.93 is: 29,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,892.68 : 97,349.73 = 19,912.93 : x
  2. Step 2: Convert to fraction form
    64,892.68/97,349.73 = 19,912.93/x
  3. Step 3: Cross multiply
    64,892.68x = 97,349.73 × 19,912.93
  4. Step 4: Simplify right side
    64,892.68x = 1,938,518,359.01
  5. Step 5: Solve for x
    x = 1,938,518,359.01/64,892.68
  6. Step 6: Final answer
    x = 29,872.68

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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.