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Finding the Fourth Proportional to 59,987.58, 82,783.48 and 33,130.76

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Solution

The fourth proportional to 59,987.58, 82,783.48 and 33,130.76 is: 45,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,987.58 : 82,783.48 = 33,130.76 : x
  2. Step 2: Convert to fraction form
    59,987.58/82,783.48 = 33,130.76/x
  3. Step 3: Cross multiply
    59,987.58x = 82,783.48 × 33,130.76
  4. Step 4: Simplify right side
    59,987.58x = 2,742,679,607.84
  5. Step 5: Solve for x
    x = 2,742,679,607.84/59,987.58
  6. Step 6: Final answer
    x = 45,720.79

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Double scale
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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.