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Finding the Fourth Proportional to 35,615.71, 53,422.08 and 9,319.87

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Solution

The fourth proportional to 35,615.71, 53,422.08 and 9,319.87 is: 13,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.71 : 53,422.08 = 9,319.87 : x
  2. Step 2: Convert to fraction form
    35,615.71/53,422.08 = 9,319.87/x
  3. Step 3: Cross multiply
    35,615.71x = 53,422.08 × 9,319.87
  4. Step 4: Simplify right side
    35,615.71x = 497,886,840.73
  5. Step 5: Solve for x
    x = 497,886,840.73/35,615.71
  6. Step 6: Final answer
    x = 13,979.42

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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.