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Finding the Fourth Proportional to 53,775.68, 80,611.68 and 25,688.12

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Solution

The fourth proportional to 53,775.68, 80,611.68 and 25,688.12 is: 38,507.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,775.68 : 80,611.68 = 25,688.12 : x
  2. Step 2: Convert to fraction form
    53,775.68/80,611.68 = 25,688.12/x
  3. Step 3: Cross multiply
    53,775.68x = 80,611.68 × 25,688.12
  4. Step 4: Simplify right side
    53,775.68x = 2,070,762,509.24
  5. Step 5: Solve for x
    x = 2,070,762,509.24/53,775.68
  6. Step 6: Final answer
    x = 38,507.42

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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.