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Finding the Fourth Proportional to 85,496.94, 117,985.53 and 47,771.22

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Solution

The fourth proportional to 85,496.94, 117,985.53 and 47,771.22 is: 65,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.94 : 117,985.53 = 47,771.22 : x
  2. Step 2: Convert to fraction form
    85,496.94/117,985.53 = 47,771.22/x
  3. Step 3: Cross multiply
    85,496.94x = 117,985.53 × 47,771.22
  4. Step 4: Simplify right side
    85,496.94x = 5,636,312,710.45
  5. Step 5: Solve for x
    x = 5,636,312,710.45/85,496.94
  6. Step 6: Final answer
    x = 65,924.15

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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.