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Finding the Fourth Proportional to 5,274,688.05, 7,912,032.08 and 5,274,688.05

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Solution

The fourth proportional to 5,274,688.05, 7,912,032.08 and 5,274,688.05 is: 7,912,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274,688.05 : 7,912,032.08 = 5,274,688.05 : x
  2. Step 2: Convert to fraction form
    5,274,688.05/7,912,032.08 = 5,274,688.05/x
  3. Step 3: Cross multiply
    5,274,688.05x = 7,912,032.08 × 5,274,688.05
  4. Step 4: Simplify right side
    5,274,688.05x = 41,733,501,037,219.20
  5. Step 5: Solve for x
    x = 41,733,501,037,219.20/5,274,688.05
  6. Step 6: Final answer
    x = 7,912,032.08

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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.