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Finding the Fourth Proportional to 54,492.60, 75,208.74 and 45,403.62

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Solution

The fourth proportional to 54,492.60, 75,208.74 and 45,403.62 is: 62,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,492.60 : 75,208.74 = 45,403.62 : x
  2. Step 2: Convert to fraction form
    54,492.60/75,208.74 = 45,403.62/x
  3. Step 3: Cross multiply
    54,492.60x = 75,208.74 × 45,403.62
  4. Step 4: Simplify right side
    54,492.60x = 3,414,749,051.64
  5. Step 5: Solve for x
    x = 3,414,749,051.64/54,492.60
  6. Step 6: Final answer
    x = 62,664.45

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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.