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Finding the Fourth Proportional to 60,381.81, 83,336.45 and 57,723.93

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Solution

The fourth proportional to 60,381.81, 83,336.45 and 57,723.93 is: 79,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,381.81 : 83,336.45 = 57,723.93 : x
  2. Step 2: Convert to fraction form
    60,381.81/83,336.45 = 57,723.93/x
  3. Step 3: Cross multiply
    60,381.81x = 83,336.45 × 57,723.93
  4. Step 4: Simplify right side
    60,381.81x = 4,810,507,117.63
  5. Step 5: Solve for x
    x = 4,810,507,117.63/60,381.81
  6. Step 6: Final answer
    x = 79,668.15

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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.