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Finding the Fourth Proportional to 6,616,458.80, 9,281,938 and 6,616,458.80

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Solution

The fourth proportional to 6,616,458.80, 9,281,938 and 6,616,458.80 is: 9,281,938

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,458.80 : 9,281,938 = 6,616,458.80 : x
  2. Step 2: Convert to fraction form
    6,616,458.80/9,281,938 = 6,616,458.80/x
  3. Step 3: Cross multiply
    6,616,458.80x = 9,281,938 × 6,616,458.80
  4. Step 4: Simplify right side
    6,616,458.80x = 61,413,560,361,154.40
  5. Step 5: Solve for x
    x = 61,413,560,361,154.40/6,616,458.80
  6. Step 6: Final answer
    x = 9,281,938

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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.