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Finding the Fourth Proportional to 64,208.20, 96,312.30 and 16,823.20

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Solution

The fourth proportional to 64,208.20, 96,312.30 and 16,823.20 is: 25,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,208.20 : 96,312.30 = 16,823.20 : x
  2. Step 2: Convert to fraction form
    64,208.20/96,312.30 = 16,823.20/x
  3. Step 3: Cross multiply
    64,208.20x = 96,312.30 × 16,823.20
  4. Step 4: Simplify right side
    64,208.20x = 1,620,281,085.36
  5. Step 5: Solve for x
    x = 1,620,281,085.36/64,208.20
  6. Step 6: Final answer
    x = 25,234.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.