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Finding the Fourth Proportional to 8,485.08, 11,712.09 and 4,948.95

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Solution

The fourth proportional to 8,485.08, 11,712.09 and 4,948.95 is: 6,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.08 : 11,712.09 = 4,948.95 : x
  2. Step 2: Convert to fraction form
    8,485.08/11,712.09 = 4,948.95/x
  3. Step 3: Cross multiply
    8,485.08x = 11,712.09 × 4,948.95
  4. Step 4: Simplify right side
    8,485.08x = 57,962,547.81
  5. Step 5: Solve for x
    x = 57,962,547.81/8,485.08
  6. Step 6: Final answer
    x = 6,831.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.