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Finding the Fourth Proportional to 8,547.92, 12,808.92 and 6,346.36

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Solution

The fourth proportional to 8,547.92, 12,808.92 and 6,346.36 is: 9,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.92 : 12,808.92 = 6,346.36 : x
  2. Step 2: Convert to fraction form
    8,547.92/12,808.92 = 6,346.36/x
  3. Step 3: Cross multiply
    8,547.92x = 12,808.92 × 6,346.36
  4. Step 4: Simplify right side
    8,547.92x = 81,290,017.53
  5. Step 5: Solve for x
    x = 81,290,017.53/8,547.92
  6. Step 6: Final answer
    x = 9,509.92

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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.