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Finding the Fourth Proportional to 56,707.68, 85,070.88 and 17,255.76

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Solution

The fourth proportional to 56,707.68, 85,070.88 and 17,255.76 is: 25,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,707.68 : 85,070.88 = 17,255.76 : x
  2. Step 2: Convert to fraction form
    56,707.68/85,070.88 = 17,255.76/x
  3. Step 3: Cross multiply
    56,707.68x = 85,070.88 × 17,255.76
  4. Step 4: Simplify right side
    56,707.68x = 1,467,962,688.27
  5. Step 5: Solve for x
    x = 1,467,962,688.27/56,707.68
  6. Step 6: Final answer
    x = 25,886.49

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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.