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Finding the Fourth Proportional to 19,155.77, 28,733.65 and 5,304.77

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Solution

The fourth proportional to 19,155.77, 28,733.65 and 5,304.77 is: 7,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.77 : 28,733.65 = 5,304.77 : x
  2. Step 2: Convert to fraction form
    19,155.77/28,733.65 = 5,304.77/x
  3. Step 3: Cross multiply
    19,155.77x = 28,733.65 × 5,304.77
  4. Step 4: Simplify right side
    19,155.77x = 152,425,247.58
  5. Step 5: Solve for x
    x = 152,425,247.58/19,155.77
  6. Step 6: Final answer
    x = 7,957.15

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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.