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Finding the Fourth Proportional to 70,301.16, 105,451.80 and 17,710.20

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Solution

The fourth proportional to 70,301.16, 105,451.80 and 17,710.20 is: 26,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,301.16 : 105,451.80 = 17,710.20 : x
  2. Step 2: Convert to fraction form
    70,301.16/105,451.80 = 17,710.20/x
  3. Step 3: Cross multiply
    70,301.16x = 105,451.80 × 17,710.20
  4. Step 4: Simplify right side
    70,301.16x = 1,867,572,468.36
  5. Step 5: Solve for x
    x = 1,867,572,468.36/70,301.16
  6. Step 6: Final answer
    x = 26,565.32

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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.