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Finding the Fourth Proportional to 57,113.28, 85,670.28 and 15,560.64

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Solution

The fourth proportional to 57,113.28, 85,670.28 and 15,560.64 is: 23,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.28 : 85,670.28 = 15,560.64 : x
  2. Step 2: Convert to fraction form
    57,113.28/85,670.28 = 15,560.64/x
  3. Step 3: Cross multiply
    57,113.28x = 85,670.28 × 15,560.64
  4. Step 4: Simplify right side
    57,113.28x = 1,333,084,385.78
  5. Step 5: Solve for x
    x = 1,333,084,385.78/57,113.28
  6. Step 6: Final answer
    x = 23,341.06

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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.