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Finding the Fourth Proportional to 70,548.61, 97,354.02 and 38,718.04

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Solution

The fourth proportional to 70,548.61, 97,354.02 and 38,718.04 is: 53,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,548.61 : 97,354.02 = 38,718.04 : x
  2. Step 2: Convert to fraction form
    70,548.61/97,354.02 = 38,718.04/x
  3. Step 3: Cross multiply
    70,548.61x = 97,354.02 × 38,718.04
  4. Step 4: Simplify right side
    70,548.61x = 3,769,356,840.52
  5. Step 5: Solve for x
    x = 3,769,356,840.52/70,548.61
  6. Step 6: Final answer
    x = 53,429.21

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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.