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Finding the Fourth Proportional to 42,673.80, 64,010.70 and 35,675.40

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Solution

The fourth proportional to 42,673.80, 64,010.70 and 35,675.40 is: 53,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,673.80 : 64,010.70 = 35,675.40 : x
  2. Step 2: Convert to fraction form
    42,673.80/64,010.70 = 35,675.40/x
  3. Step 3: Cross multiply
    42,673.80x = 64,010.70 × 35,675.40
  4. Step 4: Simplify right side
    42,673.80x = 2,283,607,326.78
  5. Step 5: Solve for x
    x = 2,283,607,326.78/42,673.80
  6. Step 6: Final answer
    x = 53,513.10

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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.