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Finding the Fourth Proportional to 40,884.40, 56,419.80 and 22,734.40

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Solution

The fourth proportional to 40,884.40, 56,419.80 and 22,734.40 is: 31,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,884.40 : 56,419.80 = 22,734.40 : x
  2. Step 2: Convert to fraction form
    40,884.40/56,419.80 = 22,734.40/x
  3. Step 3: Cross multiply
    40,884.40x = 56,419.80 × 22,734.40
  4. Step 4: Simplify right side
    40,884.40x = 1,282,670,301.12
  5. Step 5: Solve for x
    x = 1,282,670,301.12/40,884.40
  6. Step 6: Final answer
    x = 31,373.10

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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.