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Finding the Fourth Proportional to 15,220.51, 22,830.98 and 5,359.91

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Solution

The fourth proportional to 15,220.51, 22,830.98 and 5,359.91 is: 8,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.51 : 22,830.98 = 5,359.91 : x
  2. Step 2: Convert to fraction form
    15,220.51/22,830.98 = 5,359.91/x
  3. Step 3: Cross multiply
    15,220.51x = 22,830.98 × 5,359.91
  4. Step 4: Simplify right side
    15,220.51x = 122,371,857.06
  5. Step 5: Solve for x
    x = 122,371,857.06/15,220.51
  6. Step 6: Final answer
    x = 8,039.93

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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.