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Finding the Fourth Proportional to 85,838.94, 118,455.62 and 47,598.64

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Solution

The fourth proportional to 85,838.94, 118,455.62 and 47,598.64 is: 65,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,838.94 : 118,455.62 = 47,598.64 : x
  2. Step 2: Convert to fraction form
    85,838.94/118,455.62 = 47,598.64/x
  3. Step 3: Cross multiply
    85,838.94x = 118,455.62 × 47,598.64
  4. Step 4: Simplify right side
    85,838.94x = 5,638,325,878.22
  5. Step 5: Solve for x
    x = 5,638,325,878.22/85,838.94
  6. Step 6: Final answer
    x = 65,684.94

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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.