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Finding the Fourth Proportional to 59,798.58, 89,705.70 and 20,345.10

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Solution

The fourth proportional to 59,798.58, 89,705.70 and 20,345.10 is: 30,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,798.58 : 89,705.70 = 20,345.10 : x
  2. Step 2: Convert to fraction form
    59,798.58/89,705.70 = 20,345.10/x
  3. Step 3: Cross multiply
    59,798.58x = 89,705.70 × 20,345.10
  4. Step 4: Simplify right side
    59,798.58x = 1,825,071,437.07
  5. Step 5: Solve for x
    x = 1,825,071,437.07/59,798.58
  6. Step 6: Final answer
    x = 30,520.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.