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Finding the Fourth Proportional to 58,666.32, 80,822.64 and 47,993.76

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Solution

The fourth proportional to 58,666.32, 80,822.64 and 47,993.76 is: 66,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,666.32 : 80,822.64 = 47,993.76 : x
  2. Step 2: Convert to fraction form
    58,666.32/80,822.64 = 47,993.76/x
  3. Step 3: Cross multiply
    58,666.32x = 80,822.64 × 47,993.76
  4. Step 4: Simplify right side
    58,666.32x = 3,878,982,386.73
  5. Step 5: Solve for x
    x = 3,878,982,386.73/58,666.32
  6. Step 6: Final answer
    x = 66,119.41

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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.