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Finding the Fourth Proportional to 58,811.80, 81,158.88 and 31,953.70

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Solution

The fourth proportional to 58,811.80, 81,158.88 and 31,953.70 is: 44,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,811.80 : 81,158.88 = 31,953.70 : x
  2. Step 2: Convert to fraction form
    58,811.80/81,158.88 = 31,953.70/x
  3. Step 3: Cross multiply
    58,811.80x = 81,158.88 × 31,953.70
  4. Step 4: Simplify right side
    58,811.80x = 2,593,326,503.86
  5. Step 5: Solve for x
    x = 2,593,326,503.86/58,811.80
  6. Step 6: Final answer
    x = 44,095.34

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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.