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Finding the Fourth Proportional to 5,168,348.64, 7,753,749.84 and 1,622,492.64

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Solution

The fourth proportional to 5,168,348.64, 7,753,749.84 and 1,622,492.64 is: 2,434,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168,348.64 : 7,753,749.84 = 1,622,492.64 : x
  2. Step 2: Convert to fraction form
    5,168,348.64/7,753,749.84 = 1,622,492.64/x
  3. Step 3: Cross multiply
    5,168,348.64x = 7,753,749.84 × 1,622,492.64
  4. Step 4: Simplify right side
    5,168,348.64x = 12,580,402,047,801.18
  5. Step 5: Solve for x
    x = 12,580,402,047,801.18/5,168,348.64
  6. Step 6: Final answer
    x = 2,434,124.11

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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.