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Finding the Fourth Proportional to 85,482.48, 117,965.16 and 47,244.60

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Solution

The fourth proportional to 85,482.48, 117,965.16 and 47,244.60 is: 65,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,482.48 : 117,965.16 = 47,244.60 : x
  2. Step 2: Convert to fraction form
    85,482.48/117,965.16 = 47,244.60/x
  3. Step 3: Cross multiply
    85,482.48x = 117,965.16 × 47,244.60
  4. Step 4: Simplify right side
    85,482.48x = 5,573,216,798.14
  5. Step 5: Solve for x
    x = 5,573,216,798.14/85,482.48
  6. Step 6: Final answer
    x = 65,197.18

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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.