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Finding the Fourth Proportional to 64,816.65, 89,488.26 and 52,908.30

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Solution

The fourth proportional to 64,816.65, 89,488.26 and 52,908.30 is: 73,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,816.65 : 89,488.26 = 52,908.30 : x
  2. Step 2: Convert to fraction form
    64,816.65/89,488.26 = 52,908.30/x
  3. Step 3: Cross multiply
    64,816.65x = 89,488.26 × 52,908.30
  4. Step 4: Simplify right side
    64,816.65x = 4,734,671,706.56
  5. Step 5: Solve for x
    x = 4,734,671,706.56/64,816.65
  6. Step 6: Final answer
    x = 73,047.15

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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.