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Finding the Fourth Proportional to 20,403,048.15, 30,604,572.23 and 20,403,048.15

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Solution

The fourth proportional to 20,403,048.15, 30,604,572.23 and 20,403,048.15 is: 30,604,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403,048.15 : 30,604,572.23 = 20,403,048.15 : x
  2. Step 2: Convert to fraction form
    20,403,048.15/30,604,572.23 = 20,403,048.15/x
  3. Step 3: Cross multiply
    20,403,048.15x = 30,604,572.23 × 20,403,048.15
  4. Step 4: Simplify right side
    20,403,048.15x = 624,426,560,716,827.62
  5. Step 5: Solve for x
    x = 624,426,560,716,827.62/20,403,048.15
  6. Step 6: Final answer
    x = 30,604,572.23

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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.