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Finding the Fourth Proportional to 2,069.90, 2,901.70 and 2,069.90

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Solution

The fourth proportional to 2,069.90, 2,901.70 and 2,069.90 is: 2,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.90 : 2,901.70 = 2,069.90 : x
  2. Step 2: Convert to fraction form
    2,069.90/2,901.70 = 2,069.90/x
  3. Step 3: Cross multiply
    2,069.90x = 2,901.70 × 2,069.90
  4. Step 4: Simplify right side
    2,069.90x = 6,006,228.83
  5. Step 5: Solve for x
    x = 6,006,228.83/2,069.90
  6. Step 6: Final answer
    x = 2,901.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.