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Finding the Fourth Proportional to 32,789.40, 48,872.82 and 31,709.40

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Solution

The fourth proportional to 32,789.40, 48,872.82 and 31,709.40 is: 47,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,789.40 : 48,872.82 = 31,709.40 : x
  2. Step 2: Convert to fraction form
    32,789.40/48,872.82 = 31,709.40/x
  3. Step 3: Cross multiply
    32,789.40x = 48,872.82 × 31,709.40
  4. Step 4: Simplify right side
    32,789.40x = 1,549,727,798.51
  5. Step 5: Solve for x
    x = 1,549,727,798.51/32,789.40
  6. Step 6: Final answer
    x = 47,263.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.