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Finding the Fourth Proportional to 66,014.70, 98,785.50 and 57,160.59

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Solution

The fourth proportional to 66,014.70, 98,785.50 and 57,160.59 is: 85,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,014.70 : 98,785.50 = 57,160.59 : x
  2. Step 2: Convert to fraction form
    66,014.70/98,785.50 = 57,160.59/x
  3. Step 3: Cross multiply
    66,014.70x = 98,785.50 × 57,160.59
  4. Step 4: Simplify right side
    66,014.70x = 5,646,637,463.45
  5. Step 5: Solve for x
    x = 5,646,637,463.45/66,014.70
  6. Step 6: Final answer
    x = 85,536.06

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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.