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Finding the Fourth Proportional to 7,901.12, 11,898.56 and 7,036.04

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Solution

The fourth proportional to 7,901.12, 11,898.56 and 7,036.04 is: 10,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.12 : 11,898.56 = 7,036.04 : x
  2. Step 2: Convert to fraction form
    7,901.12/11,898.56 = 7,036.04/x
  3. Step 3: Cross multiply
    7,901.12x = 11,898.56 × 7,036.04
  4. Step 4: Simplify right side
    7,901.12x = 83,718,744.10
  5. Step 5: Solve for x
    x = 83,718,744.10/7,901.12
  6. Step 6: Final answer
    x = 10,595.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.