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Finding the Fourth Proportional to 7,957.50, 10,981.35 and 4,816.14

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Solution

The fourth proportional to 7,957.50, 10,981.35 and 4,816.14 is: 6,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.50 : 10,981.35 = 4,816.14 : x
  2. Step 2: Convert to fraction form
    7,957.50/10,981.35 = 4,816.14/x
  3. Step 3: Cross multiply
    7,957.50x = 10,981.35 × 4,816.14
  4. Step 4: Simplify right side
    7,957.50x = 52,887,718.99
  5. Step 5: Solve for x
    x = 52,887,718.99/7,957.50
  6. Step 6: Final answer
    x = 6,646.27

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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.