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Finding the Fourth Proportional to 35,810.40, 53,715.60 and 35,551.20

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Solution

The fourth proportional to 35,810.40, 53,715.60 and 35,551.20 is: 53,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,810.40 : 53,715.60 = 35,551.20 : x
  2. Step 2: Convert to fraction form
    35,810.40/53,715.60 = 35,551.20/x
  3. Step 3: Cross multiply
    35,810.40x = 53,715.60 × 35,551.20
  4. Step 4: Simplify right side
    35,810.40x = 1,909,654,038.72
  5. Step 5: Solve for x
    x = 1,909,654,038.72/35,810.40
  6. Step 6: Final answer
    x = 53,326.80

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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.