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Finding the Fourth Proportional to 108,582.80, 162,816.60 and 38,464.40

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Solution

The fourth proportional to 108,582.80, 162,816.60 and 38,464.40 is: 57,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,582.80 : 162,816.60 = 38,464.40 : x
  2. Step 2: Convert to fraction form
    108,582.80/162,816.60 = 38,464.40/x
  3. Step 3: Cross multiply
    108,582.80x = 162,816.60 × 38,464.40
  4. Step 4: Simplify right side
    108,582.80x = 6,262,642,829.04
  5. Step 5: Solve for x
    x = 6,262,642,829.04/108,582.80
  6. Step 6: Final answer
    x = 57,676.20

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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.