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Finding the Fourth Proportional to 70,455.80, 105,698.10 and 23,713.40

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Solution

The fourth proportional to 70,455.80, 105,698.10 and 23,713.40 is: 35,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.80 : 105,698.10 = 23,713.40 : x
  2. Step 2: Convert to fraction form
    70,455.80/105,698.10 = 23,713.40/x
  3. Step 3: Cross multiply
    70,455.80x = 105,698.10 × 23,713.40
  4. Step 4: Simplify right side
    70,455.80x = 2,506,461,324.54
  5. Step 5: Solve for x
    x = 2,506,461,324.54/70,455.80
  6. Step 6: Final answer
    x = 35,574.95

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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.