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Finding the Fourth Proportional to 64,970.56, 97,468.13 and 20,608.48

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Solution

The fourth proportional to 64,970.56, 97,468.13 and 20,608.48 is: 30,916.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,970.56 : 97,468.13 = 20,608.48 : x
  2. Step 2: Convert to fraction form
    64,970.56/97,468.13 = 20,608.48/x
  3. Step 3: Cross multiply
    64,970.56x = 97,468.13 × 20,608.48
  4. Step 4: Simplify right side
    64,970.56x = 2,008,670,007.74
  5. Step 5: Solve for x
    x = 2,008,670,007.74/64,970.56
  6. Step 6: Final answer
    x = 30,916.62

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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.