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Finding the Fourth Proportional to 75,066.48, 112,599.74 and 18,907.05

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Solution

The fourth proportional to 75,066.48, 112,599.74 and 18,907.05 is: 28,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,066.48 : 112,599.74 = 18,907.05 : x
  2. Step 2: Convert to fraction form
    75,066.48/112,599.74 = 18,907.05/x
  3. Step 3: Cross multiply
    75,066.48x = 112,599.74 × 18,907.05
  4. Step 4: Simplify right side
    75,066.48x = 2,128,928,914.17
  5. Step 5: Solve for x
    x = 2,128,928,914.17/75,066.48
  6. Step 6: Final answer
    x = 28,360.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.