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Finding the Fourth Proportional to 40,407.68, 60,548.65 and 15,434.09

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Solution

The fourth proportional to 40,407.68, 60,548.65 and 15,434.09 is: 23,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,407.68 : 60,548.65 = 15,434.09 : x
  2. Step 2: Convert to fraction form
    40,407.68/60,548.65 = 15,434.09/x
  3. Step 3: Cross multiply
    40,407.68x = 60,548.65 × 15,434.09
  4. Step 4: Simplify right side
    40,407.68x = 934,513,426.26
  5. Step 5: Solve for x
    x = 934,513,426.26/40,407.68
  6. Step 6: Final answer
    x = 23,127.13

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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.