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Finding the Fourth Proportional to 45,320.10, 67,980.15 and 45,320.10

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Solution

The fourth proportional to 45,320.10, 67,980.15 and 45,320.10 is: 67,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.10 : 67,980.15 = 45,320.10 : x
  2. Step 2: Convert to fraction form
    45,320.10/67,980.15 = 45,320.10/x
  3. Step 3: Cross multiply
    45,320.10x = 67,980.15 × 45,320.10
  4. Step 4: Simplify right side
    45,320.10x = 3,080,867,196.02
  5. Step 5: Solve for x
    x = 3,080,867,196.02/45,320.10
  6. Step 6: Final answer
    x = 67,980.15

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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.