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Finding the Fourth Proportional to 13,460.65, 20,191.08 and 4,695.55

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Solution

The fourth proportional to 13,460.65, 20,191.08 and 4,695.55 is: 7,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.65 : 20,191.08 = 4,695.55 : x
  2. Step 2: Convert to fraction form
    13,460.65/20,191.08 = 4,695.55/x
  3. Step 3: Cross multiply
    13,460.65x = 20,191.08 × 4,695.55
  4. Step 4: Simplify right side
    13,460.65x = 94,808,124.74
  5. Step 5: Solve for x
    x = 94,808,124.74/13,460.65
  6. Step 6: Final answer
    x = 7,043.36

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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.