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Finding the Fourth Proportional to 40,461.81, 55,838.61 and 22,560.63

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Solution

The fourth proportional to 40,461.81, 55,838.61 and 22,560.63 is: 31,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,461.81 : 55,838.61 = 22,560.63 : x
  2. Step 2: Convert to fraction form
    40,461.81/55,838.61 = 22,560.63/x
  3. Step 3: Cross multiply
    40,461.81x = 55,838.61 × 22,560.63
  4. Step 4: Simplify right side
    40,461.81x = 1,259,754,219.92
  5. Step 5: Solve for x
    x = 1,259,754,219.92/40,461.81
  6. Step 6: Final answer
    x = 31,134.40

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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.