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Finding the Fourth Proportional to 18,402,613.80, 27,603,920.70 and 18,402,613.80

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Solution

The fourth proportional to 18,402,613.80, 27,603,920.70 and 18,402,613.80 is: 27,603,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402,613.80 : 27,603,920.70 = 18,402,613.80 : x
  2. Step 2: Convert to fraction form
    18,402,613.80/27,603,920.70 = 18,402,613.80/x
  3. Step 3: Cross multiply
    18,402,613.80x = 27,603,920.70 × 18,402,613.80
  4. Step 4: Simplify right side
    18,402,613.80x = 507,984,292,007,925.69
  5. Step 5: Solve for x
    x = 507,984,292,007,925.69/18,402,613.80
  6. Step 6: Final answer
    x = 27,603,920.70

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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.