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Finding the Fourth Proportional to 35,352.96, 53,030.88 and 11,978.88

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Solution

The fourth proportional to 35,352.96, 53,030.88 and 11,978.88 is: 17,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,352.96 : 53,030.88 = 11,978.88 : x
  2. Step 2: Convert to fraction form
    35,352.96/53,030.88 = 11,978.88/x
  3. Step 3: Cross multiply
    35,352.96x = 53,030.88 × 11,978.88
  4. Step 4: Simplify right side
    35,352.96x = 635,250,547.81
  5. Step 5: Solve for x
    x = 635,250,547.81/35,352.96
  6. Step 6: Final answer
    x = 17,968.81

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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.