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Finding the Fourth Proportional to 7,482.40, 11,225.40 and 2,802.52

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Solution

The fourth proportional to 7,482.40, 11,225.40 and 2,802.52 is: 4,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.40 : 11,225.40 = 2,802.52 : x
  2. Step 2: Convert to fraction form
    7,482.40/11,225.40 = 2,802.52/x
  3. Step 3: Cross multiply
    7,482.40x = 11,225.40 × 2,802.52
  4. Step 4: Simplify right side
    7,482.40x = 31,459,408.01
  5. Step 5: Solve for x
    x = 31,459,408.01/7,482.40
  6. Step 6: Final answer
    x = 4,204.45

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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.