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Finding the Fourth Proportional to 64,822.80, 89,455.52 and 35,014.80

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Solution

The fourth proportional to 64,822.80, 89,455.52 and 35,014.80 is: 48,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,822.80 : 89,455.52 = 35,014.80 : x
  2. Step 2: Convert to fraction form
    64,822.80/89,455.52 = 35,014.80/x
  3. Step 3: Cross multiply
    64,822.80x = 89,455.52 × 35,014.80
  4. Step 4: Simplify right side
    64,822.80x = 3,132,267,141.70
  5. Step 5: Solve for x
    x = 3,132,267,141.70/64,822.80
  6. Step 6: Final answer
    x = 48,320.45

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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.