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Finding the Fourth Proportional to 24,420, 33,674.88 and 19,929.28

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Solution

The fourth proportional to 24,420, 33,674.88 and 19,929.28 is: 27,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,420 : 33,674.88 = 19,929.28 : x
  2. Step 2: Convert to fraction form
    24,420/33,674.88 = 19,929.28/x
  3. Step 3: Cross multiply
    24,420x = 33,674.88 × 19,929.28
  4. Step 4: Simplify right side
    24,420x = 671,116,112.49
  5. Step 5: Solve for x
    x = 671,116,112.49/24,420
  6. Step 6: Final answer
    x = 27,482.23

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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.