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Finding the Fourth Proportional to 38,856.32, 53,643.84 and 25,646.72

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Solution

The fourth proportional to 38,856.32, 53,643.84 and 25,646.72 is: 35,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,856.32 : 53,643.84 = 25,646.72 : x
  2. Step 2: Convert to fraction form
    38,856.32/53,643.84 = 25,646.72/x
  3. Step 3: Cross multiply
    38,856.32x = 53,643.84 × 25,646.72
  4. Step 4: Simplify right side
    38,856.32x = 1,375,788,544.20
  5. Step 5: Solve for x
    x = 1,375,788,544.20/38,856.32
  6. Step 6: Final answer
    x = 35,407.07

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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.