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Finding the Fourth Proportional to 65,066.58, 89,784.48 and 36,772.20

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Solution

The fourth proportional to 65,066.58, 89,784.48 and 36,772.20 is: 50,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,066.58 : 89,784.48 = 36,772.20 : x
  2. Step 2: Convert to fraction form
    65,066.58/89,784.48 = 36,772.20/x
  3. Step 3: Cross multiply
    65,066.58x = 89,784.48 × 36,772.20
  4. Step 4: Simplify right side
    65,066.58x = 3,301,572,855.46
  5. Step 5: Solve for x
    x = 3,301,572,855.46/65,066.58
  6. Step 6: Final answer
    x = 50,741.45

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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.