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Finding the Fourth Proportional to 32,390.91, 48,476.53 and 19,918.77

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Solution

The fourth proportional to 32,390.91, 48,476.53 and 19,918.77 is: 29,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,390.91 : 48,476.53 = 19,918.77 : x
  2. Step 2: Convert to fraction form
    32,390.91/48,476.53 = 19,918.77/x
  3. Step 3: Cross multiply
    32,390.91x = 48,476.53 × 19,918.77
  4. Step 4: Simplify right side
    32,390.91x = 965,592,851.47
  5. Step 5: Solve for x
    x = 965,592,851.47/32,390.91
  6. Step 6: Final answer
    x = 29,810.61

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1.5x scale

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.