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Finding the Fourth Proportional to 42,980.19, 59,311.95 and 23,859.93

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Solution

The fourth proportional to 42,980.19, 59,311.95 and 23,859.93 is: 32,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,980.19 : 59,311.95 = 23,859.93 : x
  2. Step 2: Convert to fraction form
    42,980.19/59,311.95 = 23,859.93/x
  3. Step 3: Cross multiply
    42,980.19x = 59,311.95 × 23,859.93
  4. Step 4: Simplify right side
    42,980.19x = 1,415,178,975.16
  5. Step 5: Solve for x
    x = 1,415,178,975.16/42,980.19
  6. Step 6: Final answer
    x = 32,926.31

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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.