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Finding the Fourth Proportional to 53,602.40, 73,886.04 and 42,253.48

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Solution

The fourth proportional to 53,602.40, 73,886.04 and 42,253.48 is: 58,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,602.40 : 73,886.04 = 42,253.48 : x
  2. Step 2: Convert to fraction form
    53,602.40/73,886.04 = 42,253.48/x
  3. Step 3: Cross multiply
    53,602.40x = 73,886.04 × 42,253.48
  4. Step 4: Simplify right side
    53,602.40x = 3,121,942,313.42
  5. Step 5: Solve for x
    x = 3,121,942,313.42/53,602.40
  6. Step 6: Final answer
    x = 58,242.58

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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.