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Finding the Fourth Proportional to 28,735,643.10, 43,103,464.65 and 28,735,643.10

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Solution

The fourth proportional to 28,735,643.10, 43,103,464.65 and 28,735,643.10 is: 43,103,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735,643.10 : 43,103,464.65 = 28,735,643.10 : x
  2. Step 2: Convert to fraction form
    28,735,643.10/43,103,464.65 = 28,735,643.10/x
  3. Step 3: Cross multiply
    28,735,643.10x = 43,103,464.65 × 28,735,643.10
  4. Step 4: Simplify right side
    28,735,643.10x = 1,238,605,776,555,866.50
  5. Step 5: Solve for x
    x = 1,238,605,776,555,866.50/28,735,643.10
  6. Step 6: Final answer
    x = 43,103,464.65

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Double scale
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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.