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Finding the Fourth Proportional to 56,671.72, 78,209.86 and 32,799.40

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Solution

The fourth proportional to 56,671.72, 78,209.86 and 32,799.40 is: 45,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.72 : 78,209.86 = 32,799.40 : x
  2. Step 2: Convert to fraction form
    56,671.72/78,209.86 = 32,799.40/x
  3. Step 3: Cross multiply
    56,671.72x = 78,209.86 × 32,799.40
  4. Step 4: Simplify right side
    56,671.72x = 2,565,236,482.08
  5. Step 5: Solve for x
    x = 2,565,236,482.08/56,671.72
  6. Step 6: Final answer
    x = 45,264.84

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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.