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Finding the Fourth Proportional to 82,800.80, 114,261.90 and 46,988.68

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Solution

The fourth proportional to 82,800.80, 114,261.90 and 46,988.68 is: 64,842.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.80 : 114,261.90 = 46,988.68 : x
  2. Step 2: Convert to fraction form
    82,800.80/114,261.90 = 46,988.68/x
  3. Step 3: Cross multiply
    82,800.80x = 114,261.90 × 46,988.68
  4. Step 4: Simplify right side
    82,800.80x = 5,369,015,855.29
  5. Step 5: Solve for x
    x = 5,369,015,855.29/82,800.80
  6. Step 6: Final answer
    x = 64,842.56

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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.