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Finding the Fourth Proportional to 59,278.78, 81,803.56 and 32,421.20

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Solution

The fourth proportional to 59,278.78, 81,803.56 and 32,421.20 is: 44,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,278.78 : 81,803.56 = 32,421.20 : x
  2. Step 2: Convert to fraction form
    59,278.78/81,803.56 = 32,421.20/x
  3. Step 3: Cross multiply
    59,278.78x = 81,803.56 × 32,421.20
  4. Step 4: Simplify right side
    59,278.78x = 2,652,169,579.47
  5. Step 5: Solve for x
    x = 2,652,169,579.47/59,278.78
  6. Step 6: Final answer
    x = 44,740.62

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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.