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Finding the Fourth Proportional to 57,856.80, 79,883.76 and 45,124.22

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Solution

The fourth proportional to 57,856.80, 79,883.76 and 45,124.22 is: 62,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,856.80 : 79,883.76 = 45,124.22 : x
  2. Step 2: Convert to fraction form
    57,856.80/79,883.76 = 45,124.22/x
  3. Step 3: Cross multiply
    57,856.80x = 79,883.76 × 45,124.22
  4. Step 4: Simplify right side
    57,856.80x = 3,604,692,360.67
  5. Step 5: Solve for x
    x = 3,604,692,360.67/57,856.80
  6. Step 6: Final answer
    x = 62,303.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.