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Finding the Fourth Proportional to 18,452,826.40, 27,679,239.60 and 18,346,538.20

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Solution

The fourth proportional to 18,452,826.40, 27,679,239.60 and 18,346,538.20 is: 27,519,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452,826.40 : 27,679,239.60 = 18,346,538.20 : x
  2. Step 2: Convert to fraction form
    18,452,826.40/27,679,239.60 = 18,346,538.20/x
  3. Step 3: Cross multiply
    18,452,826.40x = 27,679,239.60 × 18,346,538.20
  4. Step 4: Simplify right side
    18,452,826.40x = 507,818,226,668,352.75
  5. Step 5: Solve for x
    x = 507,818,226,668,352.75/18,452,826.40
  6. Step 6: Final answer
    x = 27,519,807.30

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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.