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Finding the Fourth Proportional to 33,320.64, 49,980.92 and 8,696.64

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Solution

The fourth proportional to 33,320.64, 49,980.92 and 8,696.64 is: 13,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.64 : 49,980.92 = 8,696.64 : x
  2. Step 2: Convert to fraction form
    33,320.64/49,980.92 = 8,696.64/x
  3. Step 3: Cross multiply
    33,320.64x = 49,980.92 × 8,696.64
  4. Step 4: Simplify right side
    33,320.64x = 434,666,068.11
  5. Step 5: Solve for x
    x = 434,666,068.11/33,320.64
  6. Step 6: Final answer
    x = 13,044.95

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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.