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Finding the Fourth Proportional to 28,243,673.70, 42,365,510.55 and 28,243,673.70

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Solution

The fourth proportional to 28,243,673.70, 42,365,510.55 and 28,243,673.70 is: 42,365,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,673.70 : 42,365,510.55 = 28,243,673.70 : x
  2. Step 2: Convert to fraction form
    28,243,673.70/42,365,510.55 = 28,243,673.70/x
  3. Step 3: Cross multiply
    28,243,673.70x = 42,365,510.55 × 28,243,673.70
  4. Step 4: Simplify right side
    28,243,673.70x = 1,196,557,656,108,107.50
  5. Step 5: Solve for x
    x = 1,196,557,656,108,107.50/28,243,673.70
  6. Step 6: Final answer
    x = 42,365,510.55

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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.