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Finding the Fourth Proportional to 7,085.52, 9,767.88 and 4,983.12

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Solution

The fourth proportional to 7,085.52, 9,767.88 and 4,983.12 is: 6,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.52 : 9,767.88 = 4,983.12 : x
  2. Step 2: Convert to fraction form
    7,085.52/9,767.88 = 4,983.12/x
  3. Step 3: Cross multiply
    7,085.52x = 9,767.88 × 4,983.12
  4. Step 4: Simplify right side
    7,085.52x = 48,674,518.19
  5. Step 5: Solve for x
    x = 48,674,518.19/7,085.52
  6. Step 6: Final answer
    x = 6,869.58

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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.