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Finding the Fourth Proportional to 70,614.04, 97,447.08 and 38,783.20

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Solution

The fourth proportional to 70,614.04, 97,447.08 and 38,783.20 is: 53,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.04 : 97,447.08 = 38,783.20 : x
  2. Step 2: Convert to fraction form
    70,614.04/97,447.08 = 38,783.20/x
  3. Step 3: Cross multiply
    70,614.04x = 97,447.08 × 38,783.20
  4. Step 4: Simplify right side
    70,614.04x = 3,779,309,593.06
  5. Step 5: Solve for x
    x = 3,779,309,593.06/70,614.04
  6. Step 6: Final answer
    x = 53,520.65

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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.