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Finding the Fourth Proportional to 59,988.40, 82,782.60 and 33,130.32

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Solution

The fourth proportional to 59,988.40, 82,782.60 and 33,130.32 is: 45,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,988.40 : 82,782.60 = 33,130.32 : x
  2. Step 2: Convert to fraction form
    59,988.40/82,782.60 = 33,130.32/x
  3. Step 3: Cross multiply
    59,988.40x = 82,782.60 × 33,130.32
  4. Step 4: Simplify right side
    59,988.40x = 2,742,614,028.43
  5. Step 5: Solve for x
    x = 2,742,614,028.43/59,988.40
  6. Step 6: Final answer
    x = 45,719.07

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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.