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Finding the Fourth Proportional to 28,602.94, 39,383.94 and 25,410.64

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Solution

The fourth proportional to 28,602.94, 39,383.94 and 25,410.64 is: 34,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,602.94 : 39,383.94 = 25,410.64 : x
  2. Step 2: Convert to fraction form
    28,602.94/39,383.94 = 25,410.64/x
  3. Step 3: Cross multiply
    28,602.94x = 39,383.94 × 25,410.64
  4. Step 4: Simplify right side
    28,602.94x = 1,000,771,121.12
  5. Step 5: Solve for x
    x = 1,000,771,121.12/28,602.94
  6. Step 6: Final answer
    x = 34,988.40

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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.