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Finding the Fourth Proportional to 7,473,602.70, 11,210,404.05 and 7,402,743.90

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Solution

The fourth proportional to 7,473,602.70, 11,210,404.05 and 7,402,743.90 is: 11,104,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,473,602.70 : 11,210,404.05 = 7,402,743.90 : x
  2. Step 2: Convert to fraction form
    7,473,602.70/11,210,404.05 = 7,402,743.90/x
  3. Step 3: Cross multiply
    7,473,602.70x = 11,210,404.05 × 7,402,743.90
  4. Step 4: Simplify right side
    7,473,602.70x = 82,987,750,197,672.81
  5. Step 5: Solve for x
    x = 82,987,750,197,672.81/7,473,602.70
  6. Step 6: Final answer
    x = 11,104,115.85

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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.