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Finding the Fourth Proportional to 55,614.94, 76,783.45 and 42,844.07

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Solution

The fourth proportional to 55,614.94, 76,783.45 and 42,844.07 is: 59,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,614.94 : 76,783.45 = 42,844.07 : x
  2. Step 2: Convert to fraction form
    55,614.94/76,783.45 = 42,844.07/x
  3. Step 3: Cross multiply
    55,614.94x = 76,783.45 × 42,844.07
  4. Step 4: Simplify right side
    55,614.94x = 3,289,715,506.64
  5. Step 5: Solve for x
    x = 3,289,715,506.64/55,614.94
  6. Step 6: Final answer
    x = 59,151.65

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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.