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Finding the Fourth Proportional to 70,368.48, 97,108.65 and 38,103.45

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Solution

The fourth proportional to 70,368.48, 97,108.65 and 38,103.45 is: 52,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,368.48 : 97,108.65 = 38,103.45 : x
  2. Step 2: Convert to fraction form
    70,368.48/97,108.65 = 38,103.45/x
  3. Step 3: Cross multiply
    70,368.48x = 97,108.65 × 38,103.45
  4. Step 4: Simplify right side
    70,368.48x = 3,700,174,589.84
  5. Step 5: Solve for x
    x = 3,700,174,589.84/70,368.48
  6. Step 6: Final answer
    x = 52,582.84

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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.