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Finding the Fourth Proportional to 56,808.84, 85,225.57 and 21,748.50

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Solution

The fourth proportional to 56,808.84, 85,225.57 and 21,748.50 is: 32,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808.84 : 85,225.57 = 21,748.50 : x
  2. Step 2: Convert to fraction form
    56,808.84/85,225.57 = 21,748.50/x
  3. Step 3: Cross multiply
    56,808.84x = 85,225.57 × 21,748.50
  4. Step 4: Simplify right side
    56,808.84x = 1,853,528,254.77
  5. Step 5: Solve for x
    x = 1,853,528,254.77/56,808.84
  6. Step 6: Final answer
    x = 32,627.46

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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.