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Finding the Fourth Proportional to 28,604,313.40, 42,906,470.10 and 28,604,313.40

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Solution

The fourth proportional to 28,604,313.40, 42,906,470.10 and 28,604,313.40 is: 42,906,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604,313.40 : 42,906,470.10 = 28,604,313.40 : x
  2. Step 2: Convert to fraction form
    28,604,313.40/42,906,470.10 = 28,604,313.40/x
  3. Step 3: Cross multiply
    28,604,313.40x = 42,906,470.10 × 28,604,313.40
  4. Step 4: Simplify right side
    28,604,313.40x = 1,227,310,117,628,129.25
  5. Step 5: Solve for x
    x = 1,227,310,117,628,129.25/28,604,313.40
  6. Step 6: Final answer
    x = 42,906,470.10

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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.