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Finding the Fourth Proportional to 25,684.72, 35,445.72 and 14,507.44

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Solution

The fourth proportional to 25,684.72, 35,445.72 and 14,507.44 is: 20,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,684.72 : 35,445.72 = 14,507.44 : x
  2. Step 2: Convert to fraction form
    25,684.72/35,445.72 = 14,507.44/x
  3. Step 3: Cross multiply
    25,684.72x = 35,445.72 × 14,507.44
  4. Step 4: Simplify right side
    25,684.72x = 514,226,656.16
  5. Step 5: Solve for x
    x = 514,226,656.16/25,684.72
  6. Step 6: Final answer
    x = 20,020.72

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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.