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Finding the Fourth Proportional to 70,597.71, 105,873.07 and 28,466.91

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Solution

The fourth proportional to 70,597.71, 105,873.07 and 28,466.91 is: 42,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,597.71 : 105,873.07 = 28,466.91 : x
  2. Step 2: Convert to fraction form
    70,597.71/105,873.07 = 28,466.91/x
  3. Step 3: Cross multiply
    70,597.71x = 105,873.07 × 28,466.91
  4. Step 4: Simplify right side
    70,597.71x = 3,013,879,155.11
  5. Step 5: Solve for x
    x = 3,013,879,155.11/70,597.71
  6. Step 6: Final answer
    x = 42,690.89

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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.