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Finding the Fourth Proportional to 8,358.75, 12,538.95 and 3,095.16

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Solution

The fourth proportional to 8,358.75, 12,538.95 and 3,095.16 is: 4,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.75 : 12,538.95 = 3,095.16 : x
  2. Step 2: Convert to fraction form
    8,358.75/12,538.95 = 3,095.16/x
  3. Step 3: Cross multiply
    8,358.75x = 12,538.95 × 3,095.16
  4. Step 4: Simplify right side
    8,358.75x = 38,810,041.01
  5. Step 5: Solve for x
    x = 38,810,041.01/8,358.75
  6. Step 6: Final answer
    x = 4,643.05

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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.