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Finding the Fourth Proportional to 42,857.48, 59,135.04 and 27,748.04

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Solution

The fourth proportional to 42,857.48, 59,135.04 and 27,748.04 is: 38,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,857.48 : 59,135.04 = 27,748.04 : x
  2. Step 2: Convert to fraction form
    42,857.48/59,135.04 = 27,748.04/x
  3. Step 3: Cross multiply
    42,857.48x = 59,135.04 × 27,748.04
  4. Step 4: Simplify right side
    42,857.48x = 1,640,881,455.32
  5. Step 5: Solve for x
    x = 1,640,881,455.32/42,857.48
  6. Step 6: Final answer
    x = 38,286.93

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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.