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Finding the Fourth Proportional to 70,477.55, 105,714.27 and 26,103.32

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Solution

The fourth proportional to 70,477.55, 105,714.27 and 26,103.32 is: 39,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,477.55 : 105,714.27 = 26,103.32 : x
  2. Step 2: Convert to fraction form
    70,477.55/105,714.27 = 26,103.32/x
  3. Step 3: Cross multiply
    70,477.55x = 105,714.27 × 26,103.32
  4. Step 4: Simplify right side
    70,477.55x = 2,759,493,418.38
  5. Step 5: Solve for x
    x = 2,759,493,418.38/70,477.55
  6. Step 6: Final answer
    x = 39,154.22

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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.