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Finding the Fourth Proportional to 64,955.84, 89,637.35 and 36,661.32

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Solution

The fourth proportional to 64,955.84, 89,637.35 and 36,661.32 is: 50,591.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.84 : 89,637.35 = 36,661.32 : x
  2. Step 2: Convert to fraction form
    64,955.84/89,637.35 = 36,661.32/x
  3. Step 3: Cross multiply
    64,955.84x = 89,637.35 × 36,661.32
  4. Step 4: Simplify right side
    64,955.84x = 3,286,223,389.00
  5. Step 5: Solve for x
    x = 3,286,223,389.00/64,955.84
  6. Step 6: Final answer
    x = 50,591.66

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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.