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Finding the Fourth Proportional to 53,337.58, 79,918.71 and 18,258.10

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Solution

The fourth proportional to 53,337.58, 79,918.71 and 18,258.10 is: 27,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,337.58 : 79,918.71 = 18,258.10 : x
  2. Step 2: Convert to fraction form
    53,337.58/79,918.71 = 18,258.10/x
  3. Step 3: Cross multiply
    53,337.58x = 79,918.71 × 18,258.10
  4. Step 4: Simplify right side
    53,337.58x = 1,459,163,799.05
  5. Step 5: Solve for x
    x = 1,459,163,799.05/53,337.58
  6. Step 6: Final answer
    x = 27,357.14

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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.