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Finding the Fourth Proportional to 40,813.80, 56,326.80 and 23,816.76

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Solution

The fourth proportional to 40,813.80, 56,326.80 and 23,816.76 is: 32,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,813.80 : 56,326.80 = 23,816.76 : x
  2. Step 2: Convert to fraction form
    40,813.80/56,326.80 = 23,816.76/x
  3. Step 3: Cross multiply
    40,813.80x = 56,326.80 × 23,816.76
  4. Step 4: Simplify right side
    40,813.80x = 1,341,521,877.17
  5. Step 5: Solve for x
    x = 1,341,521,877.17/40,813.80
  6. Step 6: Final answer
    x = 32,869.32

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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.