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Finding the Fourth Proportional to 12,290,181.30, 18,435,271.95 and 12,290,181.30

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Solution

The fourth proportional to 12,290,181.30, 18,435,271.95 and 12,290,181.30 is: 18,435,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,181.30 : 18,435,271.95 = 12,290,181.30 : x
  2. Step 2: Convert to fraction form
    12,290,181.30/18,435,271.95 = 12,290,181.30/x
  3. Step 3: Cross multiply
    12,290,181.30x = 18,435,271.95 × 12,290,181.30
  4. Step 4: Simplify right side
    12,290,181.30x = 226,572,834,580,304.53
  5. Step 5: Solve for x
    x = 226,572,834,580,304.53/12,290,181.30
  6. Step 6: Final answer
    x = 18,435,271.95

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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.