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Finding the Fourth Proportional to 29,482.80, 40,643.28 and 22,396.92

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Solution

The fourth proportional to 29,482.80, 40,643.28 and 22,396.92 is: 30,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,482.80 : 40,643.28 = 22,396.92 : x
  2. Step 2: Convert to fraction form
    29,482.80/40,643.28 = 22,396.92/x
  3. Step 3: Cross multiply
    29,482.80x = 40,643.28 × 22,396.92
  4. Step 4: Simplify right side
    29,482.80x = 910,284,290.70
  5. Step 5: Solve for x
    x = 910,284,290.70/29,482.80
  6. Step 6: Final answer
    x = 30,875.10

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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.