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Finding the Fourth Proportional to 20,473,600,513.95, 28,745,690,423.85 and 20,473,600,513.95

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Solution

The fourth proportional to 20,473,600,513.95, 28,745,690,423.85 and 20,473,600,513.95 is: 28,745,690,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,600,513.95 : 28,745,690,423.85 = 20,473,600,513.95 : x
  2. Step 2: Convert to fraction form
    20,473,600,513.95/28,745,690,423.85 = 20,473,600,513.95/x
  3. Step 3: Cross multiply
    20,473,600,513.95x = 28,745,690,423.85 × 20,473,600,513.95
  4. Step 4: Simplify right side
    20,473,600,513.95x = 588,527,782,235,582,955,520
  5. Step 5: Solve for x
    x = 588,527,782,235,582,955,520/20,473,600,513.95
  6. Step 6: Final answer
    x = 28,745,690,423.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.