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Finding the Fourth Proportional to 85,482.64, 117,875.40 and 58,664.32

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Solution

The fourth proportional to 85,482.64, 117,875.40 and 58,664.32 is: 80,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,482.64 : 117,875.40 = 58,664.32 : x
  2. Step 2: Convert to fraction form
    85,482.64/117,875.40 = 58,664.32/x
  3. Step 3: Cross multiply
    85,482.64x = 117,875.40 × 58,664.32
  4. Step 4: Simplify right side
    85,482.64x = 6,915,080,185.73
  5. Step 5: Solve for x
    x = 6,915,080,185.73/85,482.64
  6. Step 6: Final answer
    x = 80,894.56

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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.