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Finding the Fourth Proportional to 64,946.88, 89,624.88 and 36,655.20

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Solution

The fourth proportional to 64,946.88, 89,624.88 and 36,655.20 is: 50,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,946.88 : 89,624.88 = 36,655.20 : x
  2. Step 2: Convert to fraction form
    64,946.88/89,624.88 = 36,655.20/x
  3. Step 3: Cross multiply
    64,946.88x = 89,624.88 × 36,655.20
  4. Step 4: Simplify right side
    64,946.88x = 3,285,217,901.38
  5. Step 5: Solve for x
    x = 3,285,217,901.38/64,946.88
  6. Step 6: Final answer
    x = 50,583.15

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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.