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Finding the Fourth Proportional to 56,492.40, 84,760.20 and 55,606.80

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Solution

The fourth proportional to 56,492.40, 84,760.20 and 55,606.80 is: 83,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,492.40 : 84,760.20 = 55,606.80 : x
  2. Step 2: Convert to fraction form
    56,492.40/84,760.20 = 55,606.80/x
  3. Step 3: Cross multiply
    56,492.40x = 84,760.20 × 55,606.80
  4. Step 4: Simplify right side
    56,492.40x = 4,713,243,489.36
  5. Step 5: Solve for x
    x = 4,713,243,489.36/56,492.40
  6. Step 6: Final answer
    x = 83,431.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.