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Finding the Fourth Proportional to 58,848.27, 81,208.90 and 31,990.08

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Solution

The fourth proportional to 58,848.27, 81,208.90 and 31,990.08 is: 44,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,848.27 : 81,208.90 = 31,990.08 : x
  2. Step 2: Convert to fraction form
    58,848.27/81,208.90 = 31,990.08/x
  3. Step 3: Cross multiply
    58,848.27x = 81,208.90 × 31,990.08
  4. Step 4: Simplify right side
    58,848.27x = 2,597,879,207.71
  5. Step 5: Solve for x
    x = 2,597,879,207.71/58,848.27
  6. Step 6: Final answer
    x = 44,145.38

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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.