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Finding the Fourth Proportional to 56,806.86, 85,209.06 and 15,253.86

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Solution

The fourth proportional to 56,806.86, 85,209.06 and 15,253.86 is: 22,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,806.86 : 85,209.06 = 15,253.86 : x
  2. Step 2: Convert to fraction form
    56,806.86/85,209.06 = 15,253.86/x
  3. Step 3: Cross multiply
    56,806.86x = 85,209.06 × 15,253.86
  4. Step 4: Simplify right side
    56,806.86x = 1,299,767,071.97
  5. Step 5: Solve for x
    x = 1,299,767,071.97/56,806.86
  6. Step 6: Final answer
    x = 22,880.46

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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.