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Finding the Fourth Proportional to 13,458.58, 18,572.04 and 7,792.92

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Solution

The fourth proportional to 13,458.58, 18,572.04 and 7,792.92 is: 10,753.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.58 : 18,572.04 = 7,792.92 : x
  2. Step 2: Convert to fraction form
    13,458.58/18,572.04 = 7,792.92/x
  3. Step 3: Cross multiply
    13,458.58x = 18,572.04 × 7,792.92
  4. Step 4: Simplify right side
    13,458.58x = 144,730,421.96
  5. Step 5: Solve for x
    x = 144,730,421.96/13,458.58
  6. Step 6: Final answer
    x = 10,753.77

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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.