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Finding the Fourth Proportional to 40,387.99, 55,734.11 and 22,482.40

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Solution

The fourth proportional to 40,387.99, 55,734.11 and 22,482.40 is: 31,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.99 : 55,734.11 = 22,482.40 : x
  2. Step 2: Convert to fraction form
    40,387.99/55,734.11 = 22,482.40/x
  3. Step 3: Cross multiply
    40,387.99x = 55,734.11 × 22,482.40
  4. Step 4: Simplify right side
    40,387.99x = 1,253,036,554.66
  5. Step 5: Solve for x
    x = 1,253,036,554.66/40,387.99
  6. Step 6: Final answer
    x = 31,024.98

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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.