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Finding the Fourth Proportional to 34,710.90, 52,066.35 and 8,415.64

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Solution

The fourth proportional to 34,710.90, 52,066.35 and 8,415.64 is: 12,623.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,710.90 : 52,066.35 = 8,415.64 : x
  2. Step 2: Convert to fraction form
    34,710.90/52,066.35 = 8,415.64/x
  3. Step 3: Cross multiply
    34,710.90x = 52,066.35 × 8,415.64
  4. Step 4: Simplify right side
    34,710.90x = 438,171,657.71
  5. Step 5: Solve for x
    x = 438,171,657.71/34,710.90
  6. Step 6: Final answer
    x = 12,623.46

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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.