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Finding the Fourth Proportional to 58,132.80, 80,222.40 and 32,981.76

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Solution

The fourth proportional to 58,132.80, 80,222.40 and 32,981.76 is: 45,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,132.80 : 80,222.40 = 32,981.76 : x
  2. Step 2: Convert to fraction form
    58,132.80/80,222.40 = 32,981.76/x
  3. Step 3: Cross multiply
    58,132.80x = 80,222.40 × 32,981.76
  4. Step 4: Simplify right side
    58,132.80x = 2,645,875,943.42
  5. Step 5: Solve for x
    x = 2,645,875,943.42/58,132.80
  6. Step 6: Final answer
    x = 45,514.34

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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.