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Finding the Fourth Proportional to 16,818,320.70, 23,609,421.90 and 16,818,320.70

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Solution

The fourth proportional to 16,818,320.70, 23,609,421.90 and 16,818,320.70 is: 23,609,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818,320.70 : 23,609,421.90 = 16,818,320.70 : x
  2. Step 2: Convert to fraction form
    16,818,320.70/23,609,421.90 = 16,818,320.70/x
  3. Step 3: Cross multiply
    16,818,320.70x = 23,609,421.90 × 16,818,320.70
  4. Step 4: Simplify right side
    16,818,320.70x = 397,070,829,055,803.31
  5. Step 5: Solve for x
    x = 397,070,829,055,803.31/16,818,320.70
  6. Step 6: Final answer
    x = 23,609,421.90

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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.