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Finding the Fourth Proportional to 21,048.34, 29,048.25 and 12,098.02

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Solution

The fourth proportional to 21,048.34, 29,048.25 and 12,098.02 is: 16,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.34 : 29,048.25 = 12,098.02 : x
  2. Step 2: Convert to fraction form
    21,048.34/29,048.25 = 12,098.02/x
  3. Step 3: Cross multiply
    21,048.34x = 29,048.25 × 12,098.02
  4. Step 4: Simplify right side
    21,048.34x = 351,426,309.47
  5. Step 5: Solve for x
    x = 351,426,309.47/21,048.34
  6. Step 6: Final answer
    x = 16,696.15

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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.