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Finding the Fourth Proportional to 35,608.80, 53,348.40 and 28,999.20

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Solution

The fourth proportional to 35,608.80, 53,348.40 and 28,999.20 is: 43,446.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,608.80 : 53,348.40 = 28,999.20 : x
  2. Step 2: Convert to fraction form
    35,608.80/53,348.40 = 28,999.20/x
  3. Step 3: Cross multiply
    35,608.80x = 53,348.40 × 28,999.20
  4. Step 4: Simplify right side
    35,608.80x = 1,547,060,921.28
  5. Step 5: Solve for x
    x = 1,547,060,921.28/35,608.80
  6. Step 6: Final answer
    x = 43,446.03

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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.