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Finding the Fourth Proportional to 57,113.80, 85,670.69 and 15,560.80

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Solution

The fourth proportional to 57,113.80, 85,670.69 and 15,560.80 is: 23,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.80 : 85,670.69 = 15,560.80 : x
  2. Step 2: Convert to fraction form
    57,113.80/85,670.69 = 15,560.80/x
  3. Step 3: Cross multiply
    57,113.80x = 85,670.69 × 15,560.80
  4. Step 4: Simplify right side
    57,113.80x = 1,333,104,180.97
  5. Step 5: Solve for x
    x = 1,333,104,180.97/57,113.80
  6. Step 6: Final answer
    x = 23,341.19

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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.