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Finding the Fourth Proportional to 9,045,909.70, 12,697,865.90 and 9,045,909.70

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Solution

The fourth proportional to 9,045,909.70, 12,697,865.90 and 9,045,909.70 is: 12,697,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045,909.70 : 12,697,865.90 = 9,045,909.70 : x
  2. Step 2: Convert to fraction form
    9,045,909.70/12,697,865.90 = 9,045,909.70/x
  3. Step 3: Cross multiply
    9,045,909.70x = 12,697,865.90 × 9,045,909.70
  4. Step 4: Simplify right side
    9,045,909.70x = 114,863,748,314,109.22
  5. Step 5: Solve for x
    x = 114,863,748,314,109.22/9,045,909.70
  6. Step 6: Final answer
    x = 12,697,865.90

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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.