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Finding the Fourth Proportional to 56,803.80, 85,205.28 and 17,360.76

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Solution

The fourth proportional to 56,803.80, 85,205.28 and 17,360.76 is: 26,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,803.80 : 85,205.28 = 17,360.76 : x
  2. Step 2: Convert to fraction form
    56,803.80/85,205.28 = 17,360.76/x
  3. Step 3: Cross multiply
    56,803.80x = 85,205.28 × 17,360.76
  4. Step 4: Simplify right side
    56,803.80x = 1,479,228,416.81
  5. Step 5: Solve for x
    x = 1,479,228,416.81/56,803.80
  6. Step 6: Final answer
    x = 26,041.01

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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.