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Finding the Fourth Proportional to 64,882.70, 89,538.14 and 36,588.40

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Solution

The fourth proportional to 64,882.70, 89,538.14 and 36,588.40 is: 50,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,882.70 : 89,538.14 = 36,588.40 : x
  2. Step 2: Convert to fraction form
    64,882.70/89,538.14 = 36,588.40/x
  3. Step 3: Cross multiply
    64,882.70x = 89,538.14 × 36,588.40
  4. Step 4: Simplify right side
    64,882.70x = 3,276,057,281.58
  5. Step 5: Solve for x
    x = 3,276,057,281.58/64,882.70
  6. Step 6: Final answer
    x = 50,492.00

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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.