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Finding the Fourth Proportional to 7,492.40, 11,238.60 and 4,036.40

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Solution

The fourth proportional to 7,492.40, 11,238.60 and 4,036.40 is: 6,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.40 : 11,238.60 = 4,036.40 : x
  2. Step 2: Convert to fraction form
    7,492.40/11,238.60 = 4,036.40/x
  3. Step 3: Cross multiply
    7,492.40x = 11,238.60 × 4,036.40
  4. Step 4: Simplify right side
    7,492.40x = 45,363,485.04
  5. Step 5: Solve for x
    x = 45,363,485.04/7,492.40
  6. Step 6: Final answer
    x = 6,054.60

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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.