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Finding the Fourth Proportional to 13,417.96, 20,126.95 and 4,652.88

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Solution

The fourth proportional to 13,417.96, 20,126.95 and 4,652.88 is: 6,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.96 : 20,126.95 = 4,652.88 : x
  2. Step 2: Convert to fraction form
    13,417.96/20,126.95 = 4,652.88/x
  3. Step 3: Cross multiply
    13,417.96x = 20,126.95 × 4,652.88
  4. Step 4: Simplify right side
    13,417.96x = 93,648,283.12
  5. Step 5: Solve for x
    x = 93,648,283.12/13,417.96
  6. Step 6: Final answer
    x = 6,979.32

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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.