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Finding the Fourth Proportional to 42,851.77, 59,140.73 and 25,865.77

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Solution

The fourth proportional to 42,851.77, 59,140.73 and 25,865.77 is: 35,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,851.77 : 59,140.73 = 25,865.77 : x
  2. Step 2: Convert to fraction form
    42,851.77/59,140.73 = 25,865.77/x
  3. Step 3: Cross multiply
    42,851.77x = 59,140.73 × 25,865.77
  4. Step 4: Simplify right side
    42,851.77x = 1,529,720,519.81
  5. Step 5: Solve for x
    x = 1,529,720,519.81/42,851.77
  6. Step 6: Final answer
    x = 35,697.95

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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.