Home / 53,619.98-74,006.08-30,973.60

Finding the Fourth Proportional to 53,619.98, 74,006.08 and 30,973.60

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Solution

The fourth proportional to 53,619.98, 74,006.08 and 30,973.60 is: 42,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.98 : 74,006.08 = 30,973.60 : x
  2. Step 2: Convert to fraction form
    53,619.98/74,006.08 = 30,973.60/x
  3. Step 3: Cross multiply
    53,619.98x = 74,006.08 × 30,973.60
  4. Step 4: Simplify right side
    53,619.98x = 2,292,234,719.49
  5. Step 5: Solve for x
    x = 2,292,234,719.49/53,619.98
  6. Step 6: Final answer
    x = 42,749.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.