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Finding the Fourth Proportional to 85,839.46, 118,457.87 and 47,598.98

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Solution

The fourth proportional to 85,839.46, 118,457.87 and 47,598.98 is: 65,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839.46 : 118,457.87 = 47,598.98 : x
  2. Step 2: Convert to fraction form
    85,839.46/118,457.87 = 47,598.98/x
  3. Step 3: Cross multiply
    85,839.46x = 118,457.87 × 47,598.98
  4. Step 4: Simplify right side
    85,839.46x = 5,638,472,954.69
  5. Step 5: Solve for x
    x = 5,638,472,954.69/85,839.46
  6. Step 6: Final answer
    x = 65,686.26

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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.