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Finding the Fourth Proportional to 52,555.91, 78,787.00 and 19,268.22

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Solution

The fourth proportional to 52,555.91, 78,787.00 and 19,268.22 is: 28,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,555.91 : 78,787.00 = 19,268.22 : x
  2. Step 2: Convert to fraction form
    52,555.91/78,787.00 = 19,268.22/x
  3. Step 3: Cross multiply
    52,555.91x = 78,787.00 × 19,268.22
  4. Step 4: Simplify right side
    52,555.91x = 1,518,085,219.03
  5. Step 5: Solve for x
    x = 1,518,085,219.03/52,555.91
  6. Step 6: Final answer
    x = 28,885.15

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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.