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Finding the Fourth Proportional to 64,969.32, 89,657.65 and 35,161.32

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Solution

The fourth proportional to 64,969.32, 89,657.65 and 35,161.32 is: 48,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,969.32 : 89,657.65 = 35,161.32 : x
  2. Step 2: Convert to fraction form
    64,969.32/89,657.65 = 35,161.32/x
  3. Step 3: Cross multiply
    64,969.32x = 89,657.65 × 35,161.32
  4. Step 4: Simplify right side
    64,969.32x = 3,152,481,322.10
  5. Step 5: Solve for x
    x = 3,152,481,322.10/64,969.32
  6. Step 6: Final answer
    x = 48,522.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.